Gianni Santuccio

A high-ranking police inspector murders his mistress and - in a sardonic test to prove that he is above suspicion - deliberately plants clues that indicate his responsibility for the crime.

A young motorcyclist helps a man with a flat tyre, who ends up dead after crashing his car. The young man takes a detour into the forest, and stumbles on a lakeside house, occupied by three sisters, but they're not who they preten...