A cosmetics manufacturer is suspected of murdering an employee (Martin Sheen) who stole a wrinkle-removing formula.
George Hamilton and Lesley Warren guest star as lovers who become suspects in a homicide investigation.
Lt. Columbo encounters the most puzzling case of his police career when his prime suspect in a homicide case is slain. Robert Vaughn, Diane Baker, Wilfrid Hyde-White, John Dehner and Dennis Dugan guest star.
William Shatner guest-stars as an egotistical TV detective hero who engages Lt. Columbo (Peter Falk) in an unusual cat-and-mouse game.