Soon after the Brannock family moves into their dream home, they receive a threatening letter from a mysterious sender — and suffer an unexpected loss.
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.