Two years ago, Ava's two-year-old son Noah went missing, and his body has never been found. Ava has spent most of the past two years in and out of Seattle mental institutions, shattered by grief and unable to recall the details of Noah's disappearance. Now she's back at the family estate she once intended to restore to its former grandeur. But as Ava's mind comes back into focus, her suspicions grow. Ava can't shake the feeling that her family and her psychologist know more than they're saying. Unwilling to trust those around her, Ava secretly visits a hypnotist to try and restore her memories. But the strange visions and night terrors keep getting worse. Ava is sure she's heard Noah crying in the nursery, and glimpsed him walking near the dock. Is she losing her mind, or is Noah still alive? Ava won't stop until she gets answers, but the price may be more than she ever thought to pay...