Detectives from the Major Crime Unit at Bedfordshire Police have a suspect in custody who admits to the crime - but the confession is only the beginning of a case that will bring a series of deeply disturbing twists and turns in a tale that shocks and surprises the experienced police team. Cameras follow as the police continue to probe the suspect and the interview becomes more and more chilling.

Serial sexual predator Craig France is in custody, and officers from Cambridgeshire Police Rape Investigation team wait for the CPS to approve charges for rape and voyeurism. However, the satisfaction of getting a charge is short-lived, as they're only just beginning to understand the darkest depths of France's criminality.