Two sisters and their partners set out for a weekend getaway at a secluded cabin to visit the sisters’ parents. Upon arrival, they discover the parents are missing, and the cabin is in chaos. Their situation deteriorates as they find themselves trapped by the remote lake, with cars that won’t start and cell phones that are useless. As the autumn sun sets, a sinister presence emerges from the lake, hungry for human blood. As the mystery of the parents’ disappearance unfolds, old secrets and tensions surface, threatening the group’s unity. Not everyone will make it through the night, and those who do will find themselves in dire straits.