Can a family survive their own demons when a mysterious force traps them inside their home?
Youngest daughter Rose brings her fiance, Justin, to the family home where a meeting has been convened to discuss what happens to the house when parents, Ralph and Penny, retire to the countryside.
Also present are eldest, Lisa, and middle child Karl. Unresolved tensions and old rivalries are apparent from the start as Justin, the outsider, struggles to comprehend the complex web of relationships.
When a mysterious, unseen force then traps them inside the house, the veneer of civility soon crumbles, blood is spilled and the bodies start to pile up.