After three years of emotional abuse, 28 year old Peggy Klinke breaks it off with boyfriend Patrick Kennedy. When Patrick begins watching Peggy's every move, police offer little to no help, leaving Peggy to take matters into her own hands.

When "Mary" moves to a quiet DC suburb she finds a new best friend in her next-door neighbor Jane. But before long it's clear that there's something strange about Jane. Uncomfortable, Mary tries to distance herself but Jane won't be stopped.

When single mother of two, Harvette Williams, gives her business card to Kevin Gary, she has no idea that she's inviting an obsessive stalker into her life. Dr. Michelle Ward looks at what happens when a harmless crush turns into a dangerous obsession.

In 1996, outgoing Cameron Wallace meets shy Ryan Clutter in a high school art class. The two are only acquaintances but Ryan soon becomes obsessed with her. And little does she know that Ryan will stalk her for the next ten years.