韩国演员裴宗玉、李源根及池允浩出演的影片，影片《换季》主要讲述一位母亲得知儿子与朋友之间的秘密后，三人之间的故事。演员裴宗玉将在影片中饰演母亲美婧，池允浩将饰演儿子秀贤，李源根则饰演秀贤的朋友勇俊

One day, three siblings receive a postcard from their mother who left them a long time ago. But all it says is I miss you. Three siblings are disconcerted by the sudden contact, but eventually, they go on a trip to meet …