BBC One has released a new trailer for the Season 4 for “Luther”.  Idris Elba stars as the tormented DCI John Luther for the two-parter. The fourth season sees John Luther pulled out of his seclusion to help hunt down a cannibalistic serial killer.

BBC One will premiere the first of the two-part special on December 15th,  BBC America will air it in its entirety on December 17th.

Laura Haddock, John Heffernan, Patrick Malahide, Michael Smiley, Darren Boyd , Rose Leslie and Dermot Crowley all star,  in the special with Luther pitted against his most chilling adversary yet, haunted by the ghosts of his past and hell-bent on retribution, he’s drawn into a terrifyingly complex case that pushes him closer to the edge than he’s ever been. Click play above to watch the trailer.