Most kids avoid the lake house because of a rumor that an evil wizard dwells there, but the eight-year old Kim Kai always visits the place when he goes trick-or-treating. He especially likes to go there not because of the candies and chocolates. And nope! He is not scared of the terrifying stories from his friends. He visits the lake house because he is fond of the boy who always greets him with a warm smile behind the door; the boy a lot older than him but looks innocent and kind; the boy who wears grey turtle neck and black warmers most of the time; the boy he is gravitated to and shows Kai a much stronger feeling than fear.