In modern-day London, a sex criminal known as the Necktie Murderer has the police on alert; and in typical Hitchcock fashion, their trail is leading to an innocent man who must now elude the law and prove his innocence by finding the real murderer.

John Luther, the near-genius detective struggling with his own demons, returns with two distinctive, thrilling crime stories. Devastated by the brutal murder of his wife, John Luther returns to policing in a different world. His old unit has gone and he's working in the newly created Serious and Serial unit, headed by former police complaints officer Martin Schenk. Luther quickly gathers together his team, rescuing his old partner Detective Justin...

This case involves a death in the Afro-Caribbean community that puts Detective Chief Inspector Tennison and the rest of the police force in the middle of racial controversy.

Detective Chief Inspector Jane Tennison is promoted to Detective Superintendent. Includes three 2-hour episodes: The Lost Child, Inner Circles, and The Scent Of Darkness.

Having been demoted and transferred to the north, D.C.I. Tennison finds herself under-used until she gets a case where a 12-year-old boy confesses to murder. She becomes involved with trying to convict the local crime boss who has proved impossible to touch.