| Director | Avi Nesher |
|---|---|
| Genre | comedy film, horror film |
| Runtime | 100 min |
| Country | United States |
| Budget | $3 million |
Holly Gooding (Drew Barrymore) moves from New York City to Los Angeles after being implicated in a murder. She is followed by what appears to be her evil twin. While in Los Angeles, she finds a room for rent by a writer named Patrick Highsmith (George Newbern).
Patrick comes to realize something is odd about Holly, but begins to fall for her anyway. He learns that Holly's brother, Fred, is in a psychiatric hospital after killing their father. When Patrick finds out that Holly's mother was murdered and she is the prime suspect, he starts doubting her sanity, but has grown attached to her, so he does not involve the police when Fred is attacked and suspicion falls on Holly, deciding to get to the bottom of it himself with the help of his writing partner and ex-girlfriend Elizabeth.
Patrick is attacked by a knife-wielding man who is identical to Holly's supposedly dead father, then trails Holly to her family home. He is ambushed there by Holly's psychiatrist, Dr. Heller, who was the one acting as the doppelgänger, her father, and many other people (via the use of latex masks and costumes) and the source of all of Holly's misfortunes, including the murder of Holly's mother (who was planning to kill Holly for her trust fund) in order to frame Holly for this murder and for additional murders, and plans to marry her so a share of her inheritance will belong to him. Just as Heller is about to kill Patrick, Holly undergoes a bizarre supernatural transformation in which she splits into two partially unformed beings, one of which knocks the other one unconscious and kills Dr. Heller. Just as the creature seems about to kill Patrick, it spares him and remerges with its other half to reform into Holly just before the police and Elizabeth arrive.
Patrick attends Holly's funeral, and after she is laid to rest, he sees her evil doppelgänger, who seductively approaches him before warping into the horrific form that killed Heller. He awakes with a start from the nightmare to reveal that he is actually in the hospital, where he and Holly are recovering. As he falls back asleep, Holly remembers the events she went through before destroying the music box given to her by her abusive father.