Deceiver (1997) Tim Roth

The gruesome death of a prostitute brings suspicion on one of her clients, James Wayland, a brilliant, self-destructive and epileptic heir to a textile fortune. So detectives Braxton and Kennesaw take Wayland in for questioning, thinking they can break the man. But despite his troubles, Wayland is a master of manipulation, and during the interrogation, he begins to turn the tables on the investigators, forcing them to reveal their own sinister sides.