In this tense story, a boy named James is left with a new babysitter, Brenda, while his mom goes away for a couple of days. Unbeknownst to his mother, Brenda and her accomplice, Michael, are plotting to rob the family's home. Brenda pretends to be friendly to gain James's trust, but her true intentions are soon revealed as she manipulates him and ignores his mother's instructions.

As Brenda searches for hidden money, James becomes suspicious of her actions. She tries to distract him by offering to teach him how to swim, despite knowing his mother specifically told her not to let him near the pool. Tension builds as James grapples with his instincts about Brenda while she and Michael execute their plan, highlighting themes of deception, trust, and the vulnerability of children in dangerous situations.