For young Mark, the world has turned as bleak and gray as the Brighton winter. Separated from his real father and home in London, he's come to live with his mother and her new husband in an old house near the sea. He spends his days alone, trying to master the skateboard, while other boys his age are in school. He hates the unwanted stepfather who barged into Mark's life to rob him of joy. Worst of all, his once-vibrant mother has grown listless and weary, no longer interested in anything beyond her sitting room.