Chloe is a nanny who desperately wants to adopt but needs to get her life together first. She finds the perfect live-in nanny position with the Brown family–Emily, Michael, and their son. She quickly learns they’re oddly strict about security, with coded locks on all doors. Emily explains it’s due to her famous musician ex named Baz, who stalks her. Horrified, Chloe agrees to help Emily and Michael keep their son safe. But when Chloe notices things seem a bit off with the Browns, Emily and Michael turn on Chloe and accuse her of being a spy for Baz. Chloe soon learns that it’s not Baz that’s making bad things happen–it’s Emily, who is determined to win back Baz by any means necessary.