AllMovie

This disturbing feature finds two friends who can only become sexually aroused when they are with the same girl at once. Mike (Arthur Brauss) and Werner (Klaus Loewitsch) perform with the same girl to the mutual satisfaction of al three participants. Mike watches Werner before he takes his turn, making it a sex game of victim and assailants. The two meet Alice (Helga Anders), the pretty teenage girl who resists Mice's advances. Fighting ferociously to fend off the boy, Alice is raped by Mike. When it is Werner's turn, he attacks Mike and the two engage in a vicious and bloody battle employing pounding fists, ropes and knives. Alice tries to mediate when it is clear the boys may fight to the death. A policeman hears the commotion and investigates, but Alice dismisses the incident to the lawman as just a disagreement between two good friends.