A 19th-century widow is tasked with making an impossible choice when a ship sinks off the coast of her isolated fishing outpost during the middle of an especially cruel winter. With provisions running low, Eva (Odessa Young) and her close-knit community must choose between rescuing the shipwrecked crew and prioritizing their own survival. Facing the consequences of their decision and tormented by guilt, the inhabitants wrestle with a mounting sense of dread and begin to believe they are all being punished for their choices.