Body Puzzle tells the tragic and increasingly morbid story of the lovely widow Tracy (Gorky Park's Joanna Pacula). Not only has her famous pianist husband Abe died in an auto accident, but someone keeps breaking into her house and leaving severed body parts lying around.
A candy store owner is gutted, a poor woman has her hand lopped off in a public bathroom, a young swimmer is castrated, and so on. The investigating police officer, Michael (THE CHURCH's Tomas Arana), strikes up a hot and heavy romance with her to keep Tracy's mind off the rapidly accumulating trophies.
Michael's supervising police chief(spaghetti western pro Gianni Garko) tells him to keep his mind on his job; soon Michael concludes that Abe's protege and probable male lover, unable to cope with the accident, is responsible for the killings. The clincher is the mysterious link between all of the victims.