Luther 3x2 | Quick |

The investigation leads to William Carney, an aging serial killer in a care home. Luther discovers Carney has been mentored by a "pilgrim," Paul Ellis, who is carrying out the new murders.

(David O'Hara): The IA officer determined to dismantle Luther’s career. Guide to Key Scenes Luther 3x2

In the second episode of Luther Season 3, DCI John Luther investigates a series of "copycat" murders while dealing with an internal affairs investigation designed to bring him down. The investigation leads to William Carney, an aging