While walking along the beach, Christian and his girlfriend discover a mysterious woman washed ashore. The following day, Christian meets the woman again at a yacht party and soon finds himself entangled in a web of lust, intrigue and murder.
An Italian policeman investigates a series of murders involving people in prominent positions. Left behind at each murder scene is a drawing of a salamander. The policeman begins to suspect these murders are linked to a plot to seize control of the government.