Diagnosis: Murder

Season 8, Episode 21

Episode Title: On the Beach - Deadly Mirage (2)

Air Date: 2001-05-04

Overview:

While deeply disturbed that his son, Lt. Steve Sloan, is falling in love with a woman who is a dead ringer for his murdered former girlfriend, Dr. Mark Sloan begins watching his neighbors through binoculars and becomes convinced that one of them is a murderer.