Measuring Evil: Britain's Worst Killers  - Season 1

Clinical psychologist Dr Tony Hill's uncanny ability to see into the minds of murderers means he finds it difficult to distance himself from disturbing cases.

A team of exceptional forensic pathologists and scientists investigate heinous crimes and use their skills to catch the people responsible.

When the Police Service of Northern Ireland are unable to close a case after 28 days, Detective Superintendent Stella Gibson of the Metropolitan Police Service is called in to review the case. Under her new leadership, the local detectives must track down and stop a serial killer who is terrorising the city of Belfast.

The son of a notorious serial killer becomes an acclaimed criminal psychologist who uses his unique insight into how killers think to help the NYPD.

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

Rachel Burke is a criminal profiler, one of the best, actually. She, along with a sophisticated team of specialists on the FBI's Violent Crimes Task Force in Atlanta, investigates crimes throughout the country. Together, they solve the toughest of cases while trying to live their lives as best they can.

Inspector Robert Lewis and Sergeant James Hathaway solve the tough cases that the learned inhabitants of Oxford throw at them.

A detective team apply new techniques to old crimes as they solve cold cases.

Dr. Jason Bull is the brilliant, brash, and charming founder of a hugely successful trial consulting firm.

The story of one of the most infamous cases in UK criminal history, that of serial killer Dennis Nilsen. Told through the prism of three men, the series explores the personal and professional consequences of coming into contact with a man like Nilsen.