An agent in the FBI's Elite Serial Crime Unit develops profiling techniques as he pursues notorious serial killers and rapists.

Everything is not what it seems in Trinity, South Carolina. Sheriff Lucas Buck develops a sinister interest in Caleb. Caleb's cousin Gail tries to protect him, but that's complicated since she has feelings for Sheriff Buck. And Caleb's dead sister, Merlyn, returns as an angel, warning him that Buck is an incarnation of evil - and may not be human.

An exploration of the case of the Golden State Killer who terrorized California in the 1970s and 1980s, committing 50 sexual assaults and 10 murders, and true crime author Michelle McNamara's obsessive quest to find justice on behalf of his victims.

Based on the true story of Lanarkshire detective William Muncie’s quest to bring to justice notorious Scottish killer Peter Manuel.

Viewers go inside the investigation, the case files and the mind of The Golden State Killer – a man believed to be the most prolific uncaught rapist and serial killer in the nation. With exclusive cooperation from law enforcement and survivors, the docuseries examines the historical and social ramifications of The Golden State Killer’s reign of terror, explore the advances in forensic technology, and highlight the legal changes to our justice system that his crime spree spurred.