The Sitter is a 1991 television film directed by Rick Berger and starring Kim Myers as Nell, an unstable babysitter, who lives in the reality of romance novels. It is a remake of the 1952 Marilyn Monroe film Don't Bother to Knock.
Nell, a shy and quiet girl, is told that she will babysit a young rich girl at a hotel while the girl's parents attend a party. Nell feels isolated and has unrealistic expectations of love and relationships, based on what she reads in romance novels. She is taken with the little girl, Melissa (Kimberly Cullum). She has her call her "mommy" and gives Melissa a marble that she says is magic. Next, she lets her go with her to a toy store. While on the street, they play "pick a card" with a vendor. He thinks Melissa is cheating and yells at her. Nell yells at the man, saying her "daughter" isn't a cheater. While at the hotel a dog had tried to bite at Melissa, so Nell buys a toy plane. It flies into a back room where the dog chases after it, and the dog is heard whimpering.