Criminal Minds (2005) - 1x18 - Somebody's Watching

Dr. Reid falls for a Hollywood starlet at the center of a murder investigation.

When people surrounding the successful television actress start dying, Gideon and Dr. Reid call in the rest of the Behavioral Analysis Unit to assist with the case. As the team tracks down a stalker turned serial killer, Dr. Reid finds himself in danger as he grows closer to the actress in jeopardy.