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 their mother.　　Credit　　Director

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

两年前的一场意外，让孝真失去她挚爱的丈夫。32岁的她还没走出丧偶之痛，老天又交给她一项难题，她必须照顾老公与前妻生下的儿子钟旭——正值叛逆期的16岁青少年。孝真尝试打开心房与钟旭相处，但钟旭不领情，他跟著好友四处游荡，直到发现好友怀有身孕......