Doreen Goldstein is a sexy, ravishingly beautiful, successful psychiatrist who you wouldn't believe has a daughter (she's so young and hot-looking!). They both move into an old house to escape an unspoken trauma. There, all the men who see Doreen fall madly in love with her, but her daughter starts behaving strangely...
After realizing that she is not jealous of her ravishingly beautiful mother and many medical tests, they come to the conclusion that it's demonic possession, brought about by the unspoken trauma. So they call an old rabbi and a hunky stud who pretends to be Catholic, but is secretly Jewish and already planning his wedding with ravishingly beautiful Doreen.
Over green-faced scares, frozen bedrooms and vomit projectiles, they fall in love and Doreen confessess the unspoken trauma to him - she was a leftie who got blacklisted for being so beautiful and smart! Then, Doreen realizes that tolerance and love are the best medicine, and sings the film's theme song to the demon: "My Mem'ries Belong To Your Heart"
Mem'ries of an ancient, ancient tiiiiiiiimmeeeee Wild, demonic, evil mem'rieeeees Of the way you were Tender moments that you're sharing with me nooooow Oh, I'm beautiful, I KNOW it Yes, we must go there AGAAAAAAIIIIIIINNNNN!!!!
Poor Pazuzu realizes the error of his ways and leaves the body of her daughter, making sure that he thanks ravishingly beautiful Doreen. Then the daughter wakes up and says "oh mommy, you're so beautiful and you got me a new daddy! We're a perfect family!" before a tender group hug.
Then there's a voiceover in which Pazuzu, flying through the air, says that he now knows the meaning of life and love and happiness and that, as he travels across the globe, a name keeps motivating him to be the best he can be: "Goldstein, Goldstein, Goldstein..."
It would have been a film as Oscar worthy as The Mirror Has Two Faces and The Prince of the Tides!