After a series of harrowing attacks befall two seemingly random victims, the TAU desperately searches for a connection between them before the elusive stalker strikes again.
In the series finale, Beth, Jack, Vicki and the rest of the TAU team continue their search for a serial killer, and Vicki learns some startling information about her ex-husband.
Beth and Jack investigate an attack by a stalker who preys on his victims' phobias. Meanwhile, Beth learns a friend is seeing someone who, unbeknownst to both women, has ties to her.
The TAU investigates when a psychiatrist is seemingly being stalked by one of his patients. However, they soon find that there is more to the case than meets the eye, while Beth makes a shocking discovery.
The Mayor of Los Angeles is attacked and the TAU must determine whether he holds a dark secret or has a real stalker. Meanwhile, Janice and Amanda try to assist Beth with her interdepartmental problem.
A few days before Halloween, a girl is attacked at a costume store, with the resulting case revolving around the house the girl and her best friend have moved into, which is allegedly haunted.