Einer Muss die Leiche Sein plot
A group of tourists from East Germany spend their vacation in Bulgaria on the Black Sea coast. The tourists take a trip, in which their boat is damaged and they are forced to spend the night on a desert island. Among them is the criminologist Dr. Enderlein, who plans to create a diversion by solving the fictional identification of a killer. A young woman will play the corpse and is found really dead a short time later. In the suddenly very serious situation, now the characters of the group members will be revealed. Enderlein can solve one case anyway: one of them had only recently left his secret lover...