Bad Apple: A True Crime Podcast covers one patch of ground: crime in Australia and New Zealand. Helen and Riley present it together. The cases come as scripts, full of names, dates and sourced detail, but neither host treats the script as fixed, and their conversation keeps spilling over it. The range is wide. One case is The Family, a cult where children were kept out of ordinary schooling, beaten, and starved for days over things as small as dirtying their clothes, with a survivor's own words quoted along the way. Another is Jim Griffin, a Tasmanian nurse whose reputation as a father figure on a children's ward let behaviour that should have raised alarms slip past his colleagues. A third is the unsolved disappearance of Leisl Smith, told partly through her sister Grace's account of a volatile relationship and an apprehended violence order. A fourth is Joseph Thompson, the first convicted serial rapist in New Zealand, who tried to spoil a police DNA sample by smoking a cigarette just before giving it. What sets the show apart is the sound of two people reacting as they go. That cigarette trick earns a sarcastic 'good one' and a comparison to swilling mouthwash before a breath test. At one point a host stops mid-narration to flag a detail as unconfirmed. A cold open about cults wanders through a Netflix documentary and a joke about Florence Pugh starting one. They are just as quick to show plain disgust, and the nurse case draws it bluntly. The show also takes positions. In the Cleo Smith coverage, a case the pair followed while it was still developing and call their 'most live coverage yet', they say an apology to one man is not enough and hope for reparations. The same coverage sketches the accused man's upbringing and the history of the woman who raised him. The case of Urban Höglin and Heidi Paakkonen begins with the rise of backpacker travel in the late 1980s, then moves to witness descriptions and a detective's conviction about a suspect. The chat also links episodes to each other. The hosts refer back to earlier episodes on William Tyrrell and the Crewe family murders, and the cold opens work like a diary: moving interstate, no longer living together, swapping the boot of a car for two separate recording spots, and real surprise at a Spotify Wrapped result. The Thompson case shows the balance clearly, with police procedure in one breath and a breathalyser joke in the next.