Scott, who survived a brutal home invasion that killed his fiancee, is encouraged to join a support group in order to get his life back on track. At the group, he meets the enigmatic O, a woman who claims to have ties to Scott's assailant. Together, the two set out on a path of vengeance to find the monster who wronged them, but as their journey progresses, Scott begins to question O's true motives and intentions as she draws him deeper into a world of murder and lies.