The best ending, which was sadly seen the least:
EW reports: In the original, Katie returns to the bedroom, bloody, in a trance, and holding a knife. Time passes until a neighbor drops by the house to check on them, only to find Micah’s dead body. She screams, calls the cops, they come, and after encountering Micah’s corpse, they climb the stairs and find Katie in the bedroom. She snaps out of the trance as soon as the cops shine a flashlight on her. She comes toward them. Then, when a door slams (the demon at work, again!), a startled cop shoots her dead.