Chloe, a teenager who is confined to a wheelchair, is homeschooled by her mother, Diane. Chloe soon becomes suspicious of her mother and begins to suspect that she may be harboring a dark secret.
After escaping from an Estonian psychiatric facility, Leena Klammer travels to America by impersonating Esther, the missing daughter of a wealthy family. But when her mask starts to slip, she is put against a mother who will protect her family from the murderous “child” at any cost.
After her mother's mysterious death, Nica begins to suspect that the talking, red-haired doll her visiting niece has been playing with may be the key to the mounting bloodshed and chaos.
