This 1973 episode features Brenda Vaccaro, the then girlfriend of series costar Michael Douglas (Steve Keller), as rookie SFPD officer Sherry Tate. When her roommate, likewise a cop, is murdered while tracking down an elusive rapist, Sherry volunteers to act as bait for the killer. Even after Stone (Michael Douglas) orders her off the case, Sherry persists in her efforts to nail the murderer all by herself--with shocking results. Intriguingly, this episode was directed by Lawrence Dobkin, who had played a demented serial killer in the two-hour Streets of San Francisco pilot film. ~ Hal Erickson, Rovi