The cold open drops the listener into the landscape of the case before a single name has been spoken: a small Australian town, hours from any city, and five people at a house gathering for what should have been a forgettable afternoon. Host Kallmekris signals the gravity of what follows — 'it should have been a forgettable day, but it wasn't' — and names the episode the Mushroom Murders. A sponsored segment for Lola Blankets follows, with Kallmekris describing her pets' enthusiasm for the brand's faux-fur beds, before returning the listener to the story. The chapter functions as both tonal framing and logistical housekeeping, establishing the show's personality before the crime narrative begins.

Erin Trudy Scudder grew up in Glen Waverley, a solidly middle-class suburb southeast of Melbourne, in an academic household: her mother a Monash University literature lecturer, her father a government worker. Bright and bookish from childhood, she earned a place at the University of Melbourne in 1992 and moved through science into accounting before joining Air Services Australia's air traffic control training programme in February 2001. The ten-month programme was fiercely competitive and technically demanding — a profession Kallmekris notes holds 'hundreds of lives in your hands at every given moment.' Erin qualified and earned her place in the tower before moving on to local government at Monash City Council by 2004. A manager who worked alongside her remembered her as 'colorful, smart, very smart — she was no dummy,' a line that will echo back with sinister weight once the full picture emerges.

Don and Gail Patterson met through shared childhood paths — Scouts, piano, Sunday school, beachside holidays — and married before embarking on mission work in Botswana and then China. Don spent 25 years teaching at Corumburra Secondary College and at one point served as deputy principal; an exchange programme he helped create sent local students to China. Gail homeschooled their children while abroad, volunteered at the school office back home, ran Bible study groups, produced a community newsletter, and read newspapers aloud to people who couldn't see. Gail's younger sister, Heather Wilkinson, was described as a gifted English teacher whose influence brought more parents into volunteering; her husband Ian had been pastor of Corumburra Baptist Church for more than two decades. The episode presents these families with care and affection, building an emotional baseline that makes the poisoning that follows feel like a desecration rather than simply a crime.

Erin met Simon Patterson through the 'fairly eclectic circle of friends' that had formed among Monash City Council employees, and she had already met his parents before the relationship became official — a camping trip in early 2005 included a swing by the Patterson family home in Corumburra. Their relationship deepened, and Erin was unexpectedly drawn into the faith community centered on Ian Wilkinson's church; she had arrived as a committed atheist who'd been actively trying to convert Simon away from belief, but something shifted when she heard Ian preach for the first time. 'It quite overwhelmed her,' Kallmekris recounts. They married in June 2007 at the Corumburra Anglican Church, choosing that venue so Ian and Heather could attend as guests rather than officiate. Erin's parents were absent — she said they were 'on a train in Russia' — and David Wilkinson, Ian and Heather's son, walked her down the aisle.

After the wedding, the couple used money from Erin's inheritance to buy a vehicle and meander through outback Australia before travelling to southern Africa, eventually settling in Perth in 2007. Their first child arrived in January 2009 following a difficult birth requiring emergency intervention; Don and Gail came to help, and Erin described her mother-in-law as 'really supportive and gentle and patient.' But the marriage was already under pressure: a road trip that went wrong led to Erin booking a flight and leaving Simon to drive back alone with their infant, the first of multiple separations. Between 2009 and 2015, they separated and reconciled several times across various Western Australian towns. Erin attributed the dysfunction to a failure of communication; Simon felt she was always the one who left. The final split came in November 2015, though they never divorced, continued sharing custody, attended the same church, and even travelled together as a family. Erin's grandmother's estate had left her a share worth around $2 million Australian dollars, and she lent hundreds of thousands to each of Simon's three siblings — his brother Matt alone received between $300,000 and $400,000 to build a home.

On July 29, 2023, Erin Patterson hosted a lunch she had spent an entire week preparing for, having invited Simon, his parents Don and Gail, and Gail's sister Heather and her husband Ian. Simon texted the night before to say he wouldn't attend; Erin's reply was lengthy and emotional, noting she had spent a 'small fortune' on beef eye fillet and describing it as potentially her last opportunity to host a gathering like this for some time. The Wilkinsons were particularly glad to be invited — Ian said the invitation felt like 'a hopeful signal' that their relationship with Erin might improve. Erin gave the group a tour of the house before lunch, plated every portion herself, and let the women carry the dishes out. The conversation was light — family talk, easy laughter. Don finished Gail's remaining food, eating close to a serving and a half in total. Dessert followed and then, as the afternoon changed mood, Erin disclosed her fabricated cancer diagnosis and asked for guidance on how to tell her children. The group prayed for her before leaving in the late afternoon.

Kallmekris uses her own experience launching Crime, Conspiracy, Cults and Murder and the Sour Boys podcast alongside her husband to frame the Shopify sponsorship. She describes Shopify as the commerce platform behind roughly 10% of US e-commerce, used by brands ranging from Allbirds and Skims to new startups. The segment highlights AI writing tools, product photo enhancement, customisable templates, and the branded Shop Pay checkout button. Listeners are directed to shopify.com/cccm for a $1/month trial.

The collapse came quickly. By Sunday morning, both couples were calling each other to compare symptoms: severe vomiting, diarrhea, and no sign of improvement. The Pattersons called an ambulance and reached Corumburra Hospital by 10 AM on July 30; Simon drove the Wilkinsons to Leongatha Hospital roughly 20 minutes later. Both hospitals initially assessed the patients as having food poisoning or gastroenteritis, but Don's condition deteriorated rapidly — lactate levels climbing, his liver failing, sepsis setting in. Toxicologists identified the culprit as Amanita phalloides, and all four patients were transferred to major Melbourne hospitals. Death cap poisoning follows a cruelly deceptive trajectory: violent symptoms, a brief apparent recovery, then catastrophic organ failure three to five days after ingestion. Gail Patterson and Heather Wilkinson died on August 4. Don Patterson received a liver transplant but was already too ill for his body to sustain it. Ian Wilkinson spent weeks in an induced coma, also received a transplant, and was finally discharged on September 23 after 54 days in hospital.

The funerals and memorials that followed brought the community together in numbers that spoke to the Pattersons' and Wilkinsons' reach. Don and Gail's memorial at Corumburra Memorial Hall drew hundreds, with tribute letters arriving from China, Botswana, and the United Kingdom, all describing them as the most capable and generous people the writers had ever met. Simon read Gail's final words aloud — typed from her hospital bed in a last message to the family group chat: 'Lots of love to you all.' Heather's memorial on October 4 drew more than 400 people; Ian Wilkinson attended, frail and deep in recovery, in his first public appearance since the lunch. Local mayor Nathan Hersey called the three victims 'exceptional people who had given generously to the local community,' while Councillor Jenny Currie said the town had 'lost a great store of kindness.'

The investigation began formally on August 4, 2023 — the day Gail and Heather died — with Detective Sergeant Luke Farrell leading a search of Erin's Leongatha home the following morning. The contradictions stacked up quickly. Dr Chris Webster at the hospital had asked what mushrooms were in the meal; Erin said she bought them at Woolworths, which doesn't sell death caps. Her own blood work showed no clinical or biochemical signs of amanita poisoning despite her claim of being ill. Nurse Cindy Monroe noted she looked nothing like the other patients — Ian could barely lift his head while Erin sat upright in bed and left after five minutes to feed her dogs. ^{[1] — Kallmekris "Long before the lunch, Erin Patterson had been caught faking work hours as an air traffic controller, convicted of traffic offenses, and ea…" 47:50 Play} CCTV footage from August 2 showed her driving to the Coonwarra tip with a Sunbeam food dehydrator; recovered two days later, it carried her fingerprints and traces of death cap mushroom. ^{[2] — Kallmekris "Four days after the lunch, while her victims were fighting for their lives in Melbourne hospitals, Erin Patterson drove to the local tip an…" 46:40 Play} Friends had already given police screenshots of Facebook photos showing mushrooms on that dehydrator's trays. Forensic searches of her computer found iNaturalist searches for death cap sightings dating back to 2022, and cell tower data placed her phone near known death cap locations months before the lunch. Her phone was factory-reset four times — once while detectives were in the house, once remotely from a police evidence room. ^{[3] — Kallmekris "Erin Patterson's phone was factory-reset four separate times in 2023. Someone triggered a remote wipe while the device was already in a pol…" 50:10 Play} And the cancer she had disclosed to her family? Doctors found no record of any diagnosis, and her name was absent from the Victorian Cancer Registry.

As investigators dug deeper, a very different portrait of Erin Patterson emerged. Private Facebook messages revealed she had described her upbringing in starkly negative terms — her mother 'a cold robot,' her childhood 'like a Russian orphanage where they don't touch babies' — at odds with neighbours' accounts of a warm, lovely woman. Her parents hadn't attended her 2007 wedding, and she'd offered no explanation beyond them being 'on a train in Russia.' Her brief career as an air traffic controller had ended in dismissal: management had caught her leaving full shifts early while clocked as working, and she'd denied it flatly until confronted with timestamped security footage. A 2004 conviction for property damage and multiple traffic offences followed. ^{[1] — Kallmekris "Long before the lunch, Erin Patterson had been caught faking work hours as an air traffic controller, convicted of traffic offenses, and ea…" 47:50 Play} Former colleagues described her as a 'ritual, habitual, and pathological liar,' a loner, secretive about her family, and someone who had managed to get 'guys wrapped around her little finger.' The manager who once called her 'smart, very smart' had later added — 'almost too smart.' And the secondhand bookshop she'd run in Pemberton had fed a long-running obsession with true crime: she had been reading deeply in the genre for years before finding herself at the centre of it.

The prosecution never formally assigned a motive, but the investigation surfaced a clear emotional landscape of grievance. A 2022 dispute began when Simon's accountant listed him as separated on his tax return, triggering a formal child support assessment of just $38 a month and costing Erin approximately $15,000 a year in government family tax benefits. Erin had gone over Simon's head to Don and Gail, who declined to intervene and suggested she pray with Simon and withdraw the claim. Her private Facebook response was volcanic: 'This family, I swear to fucking God… so fuck 'em.' ^{[1] — Erin Patterson "This family, I swear to fucking God, I thought his parents would want him to do the right thing, but it seems their concern about not wanti…" 54:00 Play} There had also been a perceived snub at Gail's 70th birthday lunch, which Erin said had felt like an afterthought invitation. By December 2022 the dispute was, in Simon's words, 'extremely aggressive.' Meanwhile, Simon's brother Matthew had noticed Erin pulling back from family events. The warm Mother's Day text she sent Gail in May 2023 — 'Happy Mother's Day to the best mom-in-law anyone could ask for' — now reads as a calculated move to rebuild a relationship sufficiently warm that an invitation to lunch would be accepted without suspicion.

Police arrived at Erin Patterson's home on the morning of November 2, 2023, accompanied by technology detector dogs trained to locate concealed USB drives and hidden electronics. Erin was placed under arrest. Homicide squad Detective Inspector Dean Thomas acknowledged the case had been under intense public scrutiny. She was charged with three counts of murder — for Don Patterson, Gail Patterson, and Heather Wilkinson — and five counts of attempted murder: one for Ian Wilkinson, one for Simon (who had stayed away from the lunch), and three alleging she had poisoned Simon on separate occasions in 2021 and 2022. The arrest came roughly three months after the deaths.

Kallmekris uses a personal anecdote — panicking after accessing her bank account at a coffee shop on public Wi-Fi — to frame the Surfshark sponsorship. She highlights the one-subscription-for-unlimited-devices model, the email phishing scanner, and the strict no-logs policy, describing it as the first app she opens when travelling. Surfshark is noted as the only VPN with coverage in 100 countries. Listeners are directed to surfshark.com/kallmekris with code kallmekris for four extra months.

The trial opened in the Supreme Court of Victoria at the Latrobe Valley Courts in Morwell — less than an hour from the Gibson Street house. Justice Christopher Beale presided. Before the first witness, the charges relating to Simon Patterson were dropped; what remained was three counts of murder and one of attempted murder for Ian Wilkinson. Prosecutor Nanette Rogers SC built her case around four calculated deceptions: a fabricated cancer diagnosis, death cap mushrooms deliberately placed in the Wellingtons in fatal quantities, a staged hospital appearance to simulate illness, and weeks of deliberate evidence destruction. Fungi specialist Tom May identified the mushrooms in Patterson's tablet photographs as Amanita phalloides with high confidence, and Rogers argued she had weighed them to calculate doses for five people. Erin testified for eight days and made key concessions — she had foraged for wild mushrooms since 2019, bought and dumped the dehydrator, fabricated the cancer story, and factory-reset her phone to hide mushroom photos — but maintained she had never deliberately sought death caps or intended to poison anyone. The defence framed her lies as panic, not premeditation. Prosecutor Rogers pressed: had she expected not to need an alibi because she had expected everyone at the table to die?

After seven weeks of evidence, six days of closing arguments, and six and a half days of deliberations, the jury returned on July 7, 2025. All twelve members agreed: guilty on every count. Three murders — Don Patterson, Gail Patterson, and Heather Wilkinson — and one count of attempted murder for Ian Wilkinson. Media crews flooded the courthouse within minutes. ^{[1] — Kallmekris "After seven weeks of evidence and six and a half days of deliberations, all 12 jurors returned a unanimous guilty verdict on three counts o…" 58:00 Play} By the time the verdict was delivered, the case had attracted international coverage, with the quiet community of Corumburra transformed into the backdrop for one of Australia's most closely watched criminal trials.

Sentencing came on September 8, 2025. Justice Beale handed down three concurrent life sentences for murder and 25 years for attempted murder, with a non-parole period of 33 years — meaning Erin Patterson, aged 50, will not be eligible for parole until 2056, when she will be in her 80s. Beale identified five aggravating factors: substantial premeditation, an elaborate cover-up, a lack of pity toward her victims' suffering, the betrayal of trust involved, and her silence — she had never told the doctors fighting to save her guests what she had put in the food. ^{[1] — Justice Christopher Beale "Not only did you cut short 3 lives, you inflicted untold suffering on your own children, whom you robbed of their beloved grandparents." 59:18 Play} The hearing ran nearly 50 minutes and was broadcast live. Twenty-eight victim impact statements were filed; seven were read aloud. One came from Don Patterson's mother, who was 100 years old and had outlived her son. ^{[2] — Kallmekris "Don Patterson's mother was 100 years old: One victim impact statement came from Don Patterson's mother, who was 100 years old — meaning she…" 1:00:10 Play} Simon's statement noted his children had been left in an 'irreparably broken home.' Ruth Dubois, one of the Wilkinsons' daughters, named the broader community drawn into the aftermath: medical staff, investigators, shop owners, mushroom growers, the health department, and taxpayers. Erin sat through most of the hearing with her eyes closed.

Ian Wilkinson survived the poisoning, but his body never returned to what it was. His liver function remains diminished and respiratory problems followed him out of hospital. He lost his wife of 44 years and the couple he described as the closest people to him after Heather and his family. ^{[1] — Ian Wilkinson "It's a truly horrible thought to live with that somebody could decide to take her life. I only feel half alive without her." 1:00:55 Play} Yet when given the chance to speak about Erin, he chose an unexpected path. He forgave her — publicly, carefully — but only for the harm that had been done to him personally. The harm done to the others was beyond his power to absolve. His one prayer for Erin was that she would 'use her time in jail wisely to become a better person.' Outside the courthouse, he thanked police and hospital workers, then offered the line that summed up the values he and the murdered families had lived by: 'I'd like to encourage all those involved to keep turning up and serving others.' ^{[2] — Ian Wilkinson "What foolishness possesses a person to think that murder could be the solution to their problems, especially the murder of people who have …" 1:02:00 Play} And he posed the question that sits at the centre of the case and has no answer: 'What foolishness possesses a person to think that murder could be the solution to their problems, especially the murder of people who have only good intentions towards her?'

As of early 2026, the case remains unresolved. Erin Patterson filed two grounds of appeal on November 3, 2025, challenging the jury accommodation arrangement as a fundamental irregularity, contesting the phone tower and iNaturalist evidence, seeking exclusion of her Facebook messages, and alleging oppressive cross-examination. The prosecution filed its own appeal on October 6, 2025, arguing the sentence was manifestly inadequate and that Justice Beale had erred in his assessment of the non-parole period. ^{[1] — Kallmekris "Simon Patterson turned down Erin's lunch invitation the night before, saying he felt uncomfortable. After the verdict, a gag order lifted a…" 1:02:28 Play} Three Court of Appeal judges will hear both if leave is granted. A post-verdict gag order lift also revealed that Simon Patterson had told pre-trial hearings he had declined the lunch because he feared she would poison him — and that he had previously fallen severely ill after eating food she had prepared: a penne Bolognese, a chicken korma, and a vegetable curry wrap. The jury never heard any of it. And the question that drives everything — why — remains without an official answer. Prosecutors said the jury didn't need one; Justice Beale wouldn't speculate. Erin has never explained it. She may never explain it.

Kallmekris closes the Mushroom Murders case with a brief but heartfelt reflection: expressing hope that the prosecution's appeal succeeds and inviting listeners to suggest future cases in the comments. The outro is warm and characteristically personal before transitioning into post-episode advertising spots for Zocdoc (a doctor-booking app) and Mint Mobile (a budget wireless carrier), both delivered by third-party voice talent rather than the host.