Private-eye Nick Gallo pursues a cunning mastermind behind bizarre Chicago killings. His beautiful client Kelly seduces him and then has puzzling identity changes. Sophisticated dandy Jake Starr and salty Upstream Sally elicit tangled but vital information. Vengeful lesbian Faye Rogers becomes and unexpected ally. Old chum Captain Majeski, Chicago PD, devises a startling threat. Mentor and best friend Professor Hunt is caught in a shocking snare. Comic relief comes from jazz muscian Bobby Lewis and street denizen Lenny the Pick. Readers are treated to a suspenseful drama involving personality disorder and contrived hypnosis.