Be careful who you trust with your child.

After losing her husband, Sarah is doing everything she can to hold herself—and her young son Theo—together. When Elena appears, calm, capable, and eager to help, she seems like the answer to Sarah’s prayers. Theo adores her, and for the first time in months, Sarah feels like she can finally breathe.

But soon, little things start to feel… off. Lullabies Sarah has never sung filling the house. Documents moved. Unfamiliar items appearing in Theo’s room. And the way Elena looks at her son—as if he belongs to her.

As Sarah digs deeper, she realizes this perfect nanny isn’t who she claims to be. And letting Elena into their home might not have just been a mistake—it could cost Sarah everything.