In RIVER, when three estranged siblings reunite in their hometown after the death of their father, they set out to scatter his ashes at his favorite spot on a remote river. But when their boat breaks down, the trip devolves into a waking nightmare. Stranded miles from help with no cell service, they soon realize they’re being stalked by a faceless killer who has emerged from the woods. To survive the night, the siblings must put their long-standing grudges aside and fight together against a ruthless, almost mythic terror.