Twenty years ago, ice climber/adventurer Sean McIntyre savagely murdered his family and hanged himself in the attic. The murders are an unwelcome and unspoken part of a town's history until Richard, a savy college student, convinces three couples to spend Halloween night in the house and solve the mystery during a live webcast. As they move through the abandoned house, they soon realize they're not alone, and the night becomes a fight for survival.