Luther

A spate of brutal murders brings DCI John Luther back to the streets of London, where he witnesses the depths of human depravity. Gangster George Cornelius applies his own pressure as the victim count rises. It's up to Luther to find the killer.

Luther deals with a demon from his past as the police and Cornelius converge on his home; Halliday is convinced that the body in the morgue isn't their killer.

Luther must shield the innocent while trying to keep violent pursuits of vengeance from consuming Cornelius.

Still in shock from his friend's death, Luther races to rescue the others from Cornelius' deadly retribution; Halliday takes the lead to track down a killer on the loose.