In an attempt to heal from her own devastating miscarriage, Summer Pratt accepts a job offer from a wealthy couple to be a nanny for their daughter, Sophie. The more time Summer spends with Sophie, the more she notices just how peculiar she is and how her parents seem to be indifferent towards Sophie's strange behavior. Setting out to discover the truth, Summer begins to suspect something is very wrong with the beautiful, wealthy couple that call themselves Sophie's parents.