A séance is attended by the ghost of a woman's dead husband. The woman is a friend of the McMillans, and they they leap into action to rescue her sanity and her life.
A composer/pianist whose latest work is dedicated to Sally is stabbed in his apartment which contains items that point to a relationship with her, although she had not met him previously.
Sergeant Enright's abusive ex-wife is shot while locked in a room alone with him, and the bullet that kills her came from his gun--a weapon he was holding at the time of the shooting.
Sally is the victim of a purse-snatcher. But when her purse is returned, and the thief is found dead, Mac realizes Sally has a secret admirer with a deadly obsession.
