Missing (2003)

Season 1: Episode 17

Under heightened stress as the frequency of her waking visions increases, Jess meets an FBI inspector who tells her about a secret investigation of Brooke. Jess can't discern whether this is a dream or reality and begins to believe she is going crazy. What's really happening: Jess' visions are helping the bureau track down a female serial killer, and the killer's dark paranoia is entering Jess' mind.