Episode Two (S01E02)

DI Kate Ashurst and DS Emma Scribbins delve into the murder of Lyn Chichester, a well-regarded charity shop employee, who was stabbed shortly after a dinner party with her husband, Nick. Their investigation uncovers that Lyn and Nick had been part of a wife-swapping lifestyle, which included same-sex relationships, with Lyn being a prominent figure in their swinging circle.