24-four-year-old Caroline Nosel befriends new colleague Christopher O'Kroley, but he soon begins harassing her. After he is dismissed from work, he sets on to seek revenge leading to a tragic outcome.

One June morning in 2013 in Dundalk, MD, cleaning lady Myra goes to the property office and sees a nightmare scene. The office has been ransacked and manager Melinda Schaefer is dead.