When the body of an 11-year-old boy is found in the Georgia woods, detective Ralph Anderson launches an investigation into the gruesome murder.

During a surreptitious late-night visit with Terry, Ralph admits to being baffled by conflicting physical evidence. The next day, an unexpected tragedy throws the investigation into a tailspin. Meanwhile, Glory tries to soothe her daughter Jessa, who says she’s been visited by a strange man in her room at night.

While retracing the Maitlands' recent family vacation in Dayton, Ohio, Holly pursues a possible connection to an eerily similar case and gains valuable insight from local former detective Andy Katcavage. Meanwhile, Glory faces increased scrutiny in her daily life, and Jack's behavior grows progressively more erratic.

The group finds itself in a climactic showdown in their last-ditch, desperate attempt to root out El Coco.