One lonely evening, factory owner Martin Koenen takes a girl home with him. Irene Lersch was coming home from a nightclub and had missed the bus. She wasn't entirely unhappy about being picked up by an older man-Koenen, on the other hand, is insecure and uptight. He offers Irene a drink. Then he goes to the bathroom to take a shower. When he returns, the girl is dead. Koenen loses his nerve. Instead of calling the police, he takes the body away, simply dumping it in a park.