In her many years as a social worker, Emily Jenkins believes she has seen it all, until she meets 10-year-old Lilith and the girl's cruel parents. Emily's worst fears are confirmed when the parents try to harm the child, and so Emily assumes custody of Lilith while she looks for a foster family. However, Emily soon finds that dark forces surround the seemingly innocent girl, and the more she tries to protect Lilith, the more horrors she encounters.

A boy takes in a stray dog, later finding out that it's an ultra-intelligent runaway from a genetic research lab. Unbeknownst to him, the dog is being stalked by another escaped creature that's not quite so friendly.