A serial killer who preys on women haunts Chicago, and Kolchak (Darren McGavin) comes to believe that the killer is the original Jack the Ripper, a seemingly immortal killer who has slain women in many cities over the last century.
Carl, inexplicably dropping his plans to marry Florida, decides to leave town. First of two parts.
When Stone is framed to look as if he's on the take, Keller suspects someone on the force. Guest star: Tyne Daly.
Abby's thesis gets an offer, but Tom's isn't accepted.
