It was just a normal week for Danny. At least it was, until Olivia disappeared. His friends have no memory of her, leaving Danny to start doubting his sanity. Did he imagine her? Was she ever real? One by one, his friends become hunted by something terrifying and Danny is helpless to stop it. What follows is a mind-bending chain of events that cast Danny's view of the world into question, as he struggles to survive, all the while questioning what his reality really is.