A suspenseful, atmospheric adaptation of Daphne du Maurier's enthralling short story. Mysterious masses of birds have begun to violently attack at high tide, driving strangers Nat and Diane to take refuge in an isolated, abandoned house by the sea and form a bond to survive their haunting new circumstance. With no electricity and scarce food, the tension is palpable and hope is waning. Yet if two is company, three is a crowd, as the sudden arrival of a young woman with a mysterious nature of her own ruffles feathers in the house and quickly threatens to destroy their so-called sanctuary.