Based on a true story that spanned more than 30 years in which a young man was charged and convicted of brutally murdering his mother. Each episode is structured around an interrogation taken directly from the real police case files, with the goal of turning the viewer into a detective.

On the face of it, they’re just another family moving to the wide open spaces of the Big Sky Country for a tree change. But for teenage Imogen Day and her parents Samantha and Will, the move to Montana is an escape from quite a unique kind of bullying. Desperate to make a new life for herself, Imogen must overcome new tormentors, old secrets, and a strange presence in the attic.