When Western Australian radio journalist Amy Rhinehard decides to use a crime podcast to explore a gruesome murder, she's seeking ratings, awards and career glory. Her idea: to use the listeners of her radio show as its co-creators, with live-time calls and digital suggestion boards. The case: Jonah Scott, charged and imprisoned for life for the murder of his girlfriend, Casey Williams. Although Jonah went to great lengths to hide the body, when arrested he confessed immediately and pleaded guilty. Is this case really as open-and-shut as it would seem? Or is the something really more sinister afoot? Amy's investigation plunges her into a world of drugs, sex, gender identity and religious cults... and in her search for the truth, she finds she also has to answer questions within herself.