On a mission to bring the Devil to Earth, an escaped demon manipulates a group of Friends hanging out on a video-chat. Since this ruthless demon can possess multiple people at once, knowing who to trust is the key to survival.
Kate attends her estranged sister's bachelorette party at the request of their dying father. The weekend, held at a remote cabin, turns into a savage life-or-death struggle that pits family against family, and past against present.
Barbara adjusts to her new life behind bars, her crimes start to haunt her. Her new cellmate Evelyn is about to start an obsessive and ghostly friendship with her, one that Barbara cannot escape from.