S1·E13 The Deadly Impostor
Aired December 10, 1975
Synopsis
John Colby, an old friend of Starsky and Hutch's, returns to town, and asks them to use their connections to help him find his ex-wife Karen. But as they look for the woman, the duo find that there are things that don't quite add up, and, unbeknownst to them, the man holds a sinister and deadly secret.