FBI Special Agent Nora Price is haunted by the childhood memory of being abducted, with her sister, by a notorious serial killer, and escaping, while her sister was never found. Now, a series of gruesome crimes leaves the community in fear as victims are discovered suspended upside down in trees, resembling chrysalises undergoing a horrifying transformation. In every case, Nora can't help but search for parallels to her own, determined to see if it's the same killer, and if her sister is still out there...
