Kaminsky (1986)

Crime scene: 10th police station. A desolate place on the outskirts of Berlin. Two cops are on duty here. Dieter Stecker - young and hopeful - and Rolf Kaminsky - scrapped and bitter. Kaminsky was once a good cop, but because of a crime he was sent to this deserted precinct. Now he is obsessed with just one idea: to get back at those who hurt him. The compulsion to demonstrate his dwindling strength and vitality turns him into an animal, a devil in human form who only follows his animalistic instincts...