Once there were four Lasco siblings banded together against a world that failed to protect them. But on a hellish night that marked the end of their childhood, eldest brother Shawn died violently after being dragged behind closed doors. Though the official finding was accidental death, Nathan Lasco knows better, and has never forgiven their mother, Stella.

Now two decades later, Stella promises to finally reveal the truth of what happened on The Day of the Door. Accompanied by a paranormal investigative team, the Lasco family comes together one final time, but no one is prepared for the revelations waiting for them on the third floor.