After almost drowning in a lake, Madison finds herself bound to a life of fear. Crippled by her post trauma, Madison attempts to shut out the world but her fear intensifies and she is faced with the vision of a dark figure that haunts her day and night. After watching her struggle for one year with the phobia and visions, Madison's four friends attempt an unconventional intervention in which they accidentally open a floodgate to a dark place where none of them are safe.