While the Children Sleep (also known as The Sitter) is a 2007 American made-for-television horror film directed by Russell Mulcahy and starring Mariana Klaveno, Gail O'Grady, William R. Moses, Tristan Lake Leabu, Madison Davenport, and Stacy Haiduk.

Released on the Lifetime Movie Network, its plot concerns a couple who hires a live-in nanny who inserts herself increasingly into the family routine.

Then friends of the family begin to have mysterious accidents, as the nanny conspires to replace the mother through murder.

[1] A couple, Carter and Meghan, decide that they should hire a live-in sitter so that they can both work and support their two children, Max and Casey.

[3] As backstory, we find that Abby, whose real name is Linda Reynolds, had been rescued from her abusive mother by family lawyer Carter many years before, where Abby's obsession originates with the family and desire to replace Meghan as his wife.