On a quiet suburban street tucked within a 'safe neighborhood', a babysitter must defend a twelve-year-old boy from strangers breaking into the house, only to discover that this is far from a normal home invasion.

CDC researcher Abby Arcane investigates what seems to be a deadly swamp-born virus in a small town in Louisiana but she soon discovers that the swamp holds mystical and terrifying secrets. When unexplainable and chilling horrors emerge from the murky marsh, no one is safe.