Five close friends, all of them married, share a loft to meet their mistresses. One day they find the body of a young woman in the loft. Since there are only five keys to the loft, the five men begin to suspect each other of murder.

A police inspector investigates the robbery of 66 safe deposit boxes at a private bank in Brussels.

The family of the Belgian prime minister is kidnapped. To get them released, he must murder the American president.