Casey Affleck and Jessica Alba have signed on to star in Michael Winterbottom’s “The Killer Inside Me,” based on the novel by Jim Thompson.

According to the Hollywood Reporter, the film stars Affleck as a West Texas sheriff and focuses on his transition from a boring cop into a ruthless murderer. Alba plays a prostitute.

Thompson’s novel first made it to the big screen in 1976, with Stacy Keach starring.

Winterbottom’s directing credits include “Welcome to Sarajevo,” “In this World” and “A Mighty Heart.”

As for Affleck, he had a solid last year, starring in “Ocean’s Thirteen,” “Gone Baby Gone” and “The Assassination of Jesse James by the Coward Robert Ford.”

Alba was last seen in “The Love Guru.” She is currently shooting “An Invisible Sign of My Own.”