Kate becomes convinced that Adam is actually Jeremy, disguised by reconstructive surgery, and goes back into the house, only to find Adam waiting for her. To her surprise, he asks her to dance. Kate becomes frightened, knees him in the groin and flees. She runs through the house, discovering Dorothy's room trashed and Paige and Ruthie's corpses. She locates a gun, but the Cupid masked killer jumps out from the darkness and sends them both tumbling down a staircase. The killer arises and is shot to death by Adam. As a shocked and confused Kate apologizes profusely, Adam pulls off the mask to reveal Dorothy. Adam forgives Kate, explaining that childhood trauma can lead to lifelong anger and some people are eventually forced to act on that anger, referring to Dorothy. As Kate and Adam wait for the police to arrive, they hug and Adam says he has always loved her. Moments later, when Kate closes her eyes, Adam's nose begins to bleed, revealing that he is in fact Jeremy Melton and the true killer, framing the dead Dorothy for his crimes as she did to him 13 years prior.