Dark Rage(2008)

Dark Rage is a psychological thriller that follows Ned Harris, a seemingly ordinary fifty-something man—devoted father, reliable colleague, compassionate landlord—who harbors a dark secret: he's a serial killer. When Paul James, Ned's calculating and voyeuristic long-term tenant, crosses paths with Kate and Jason, a troubled young couple who move into the building, a chain of violent events spirals dangerously out of control. As Ned's carefully constructed life unravels, the two men are drawn toward an inevitable confrontation that forces them to face their deepest demons and expose the twisted truths binding them together. Dark Rage is an unflinching descent into psychological darkness, exploring the warped sensibilities and brutal impulses lurking beneath a respectable facade. This is uncompromising, intense cinema for viewers with a strong stomach.