The Crescent (2018)

A mother following the death of her husband with her young son retreats to a seaside cottage at Silver Crescent Beach. The loss has been emotionally draining, and the added pressures of single parenting have become more than she can bear. To help cope she turns to her art - the abstract printing process of paper marbling. But the work often leaves her reminiscing about her past life. Though the implications of his father's absence aren't fully understood, Lowen also feels the loss. He, therefore, longs constant attention of his mother, acts out, and develops a strange fixation with the ocean. As mother and son attempt to rebuild their bond, a mysterious force from the sea begin to haunt them.