Through the tapes, Tricia learns EJ was blackmailing Dr. Hale with a video of her slashing his tires after she terminated his treatment because she was not being paid, only senseible decision in this book). Adrienne sought help from her boyfriend, Luke, a computer hacker. In the present, Tricia's suspicions are confirmed when she finds a sleeping bag in the attic and later encounters Luke in Dr. Hale's office. They restrain him, and he claims the body they found under the floor isn't Adrienne's. This leads to a plot twist: Ethan leaves to get help (shouldn't you have done it the second you saw that blizzard has stopped and secondly why go to an open house when you started to realize a blizzard has started, make it make sense), and Tricia, left alone, re-hides all the tapes except one. This tape reveals Tricia whose real name is Patricia, was infact PL. Adrienne enlisted Tricia's help to kidnap and then kill EJ by locking him in floorboard. Tricia, fearing exposure, then kills Adrienne and burns her body. The final twist reveals Ethan is the son of GW, who's worst fear came true when her son indeed killed her. Tricia, aware of his identity, had been stalking him before their relationship began. The story concludes with Tricia and Ethan's children playing in the backyard, where Luke and EJ are buried.