A modern take on the 1970s political Watergate scandal focusing on untold stories and forgotten characters of the time.

When the moonless shadows of London give birth to a new nightmare, John Luther (Idris Elba) once again confronts the depths of human depravity. As a series of monstrous killings becomes more audacious, Luther and new recruit DS Catherine Halliday (Wunmi Mosaku) are confounded by a tangle of misdirection that seems to protect an unspeakable horror. But as the case brings him closer than ever to the nature of true evil, a reluctant Luther faces the...

A self-destructive near-genius, Luther might just be as dangerous as the depraved criminals he hunts. Luther follows his own moral code as much as the rules of criminal law. But he quickly becomes locked in a lethal battle of wits with Alice, a beautiful, highly intelligent mass murderer, and his decision-making process becomes increasingly murky. Luther's lonely path pulls him towards the very edge of temptation.