It Follows (2015)
Plot
A girl flees her house in fear and drives to the beach where she tearfully calls her father. By morning, she has been brutally murdered.
Jay, a college student, goes to see a film with her boyfriend Hugh. In the theater, Hugh points out a woman standing at the entrance whom Jay cannot see. Fearful, he demands that they leave. On another date, Hugh and Jay have sex in his car, after which Hugh incapacitates her with chloroform. She wakes up tied to a wheelchair, and Hugh explains that their sex has passed on a curse: an entity which can only be seen by those with the curse, and can take on the appearance of any person, will follow Jay at walking pace. If it catches her, it will kill her and pursue the previous person to have passed it on. After spotting a naked woman walking toward them, Hugh drives Jay home and flees.
The next day, the police cannot find the woman or Hugh, who was living under a false identity. At school, Jay sees an old woman in a hospital gown walking towards her, invisible to others. Jay's sister Kelly and her friends Paul and Yara agree to help and spend the night in the same house. Paul investigates a smashed kitchen window but sees no one; Jay sees a half-naked and bloodied woman walking toward her. Jay runs upstairs to the others, who cannot see the entity. When a tall man with gouged-out eyes enters the bedroom, Jay flees the house and rides a bike to a nearby playground, where her friends find her.
With the help of their neighbor, Greg, they discover that Hugh's real name is Jeff Redmond and trace him to his address. Jeff informs them he got the curse from a one-night stand and reiterates that Jay has to pass it on. The group drives to Greg's lakehouse, where Jay learns to fire a gun. The entity — taking on the appearances of Yara and that of Jay's boy neighbor — attacks Jay. She shoots it, but it recovers. Jay flees in Greg's car but crashes into a cornfield, and wakes up in the hospital with a broken arm.
Greg agrees to sleep with Jay to pass on the curse, and insists he does not believe in it. Days later, Jay sees Greg smash the window to his own house and enter. She tries to warn the real Greg on the telephone but he does not answer. She runs into the house and finds the entity in the form of Greg's half-naked mother knocking on his door; it jumps on Greg and rapes him as he dies.
Jay flees by car and spends the night outdoors. On a beach, Jay sees three young men on a boat. She undresses and walks into the water. Back home, Jay refuses Paul's offer of sex.
The group plans to kill the entity by luring it into an abandoned swimming pool and plunging electrical devices into the water. Jay, waiting in the pool, spots the entity and realizes it has taken the appearance of her father; it throws the devices at her. Firing at an invisible target, Paul accidentally wounds Yara, but shoots the entity in the head, causing it to fall into the pool. As it drags Jay underwater, he shoots it again and Jay escapes. The entity leaves a cloud of blood, but no body.
Jay and Paul have sex. Later, they walk down the street holding hands, while someone appears to be following them.