THE WATCHER

After hiring a private detective, Dean speaks with a former homeowner who's still shaken by what he endured. Nora and the kids move into a motel.

The pool of suspects shrinks in the wake of a neighborhood tragedy. Karen offers Nora a way out. A strange visitor tells Dean about the Fourth Turning.

As Dean digs deeper into the house's history, Theodora discovers Dakota's disturbing screen name, and Ellie's secret relationship comes to light.

Nora thinks Dean wrote the letters to scare her into selling, but a DNA test yields surprising results. Contractors uncover something in the basement.

Dean and Nora find a hidden room where someone's been living. Theodora shares intriguing intel about Roger Kaplan. The family makes a fateful decision.

Nora urges Dean to move on, but the past continues to haunt him. A shocking confession doesn't add up. Back at the house, keen eyes continue to watch.