That night, someone smashes the kitchen window Paul investigates but sees no one. Jay's sister, Kelly and her friends, Paul Bolduan and Yara Davis, agree to help and spend the night in Jay and Kelly's house. At school, Jay sees an old woman in a hospital gown walking towards her, invisible to others. The next day, the police cannot find the naked woman or Hugh, who was living under a false identity. Hugh's claims are proven real when a naked woman appears and walks straight for Jay.

If it catches Jay, it will kill her and pursue the previous person to have passed it on: Hugh, who is passing it to Jay as leverage. It will perpetually be walking towards Jay's location at all times, no matter where she is. Hugh explains that he has passed an entity onto her through intercourse. On another date, Hugh and Jay have sex in his car, but afterwards, he incapacitates Jay with chloroform and she wakes up tied to a wheelchair. When Jay says she cannot see the girl, Hugh becomes unnerved and asks that they leave. Hugh points out a young girl in the back of the theater. Jaime 'Jay' Height, an Oakland University student, goes on a date with her new boyfriend, Hugh, to the movies. By dawn, it is revealed that she had been brutally murdered. She takes her parents' car and drives to the beach, where she tearfully tells her Dad over the phone she loves him. A young girl named Annie flees from her house in fear, but there is no visible threat.

It follows 2 sequel 2016