After re-growing the magical garden, Kelly's Grandma appears...from 1975! Becky has cooked a recipe that inadvertently alters the course of history and everything is turned topsy-turvy. Kelly, Hannah and Darbie have to travel back in time to 1975 to set things straight.。讲述了控制了毕业10天的高中3年级29名学生的美术老师柊一颯的最后一课的校园推理剧。菅田将晖饰演柊一颯,永野芽郁饰演因某件事而封闭内心的女学生茅野樱。。毕业于警备学堂的上海滩侦探宋天鹏一心做个除暴安良的好侦探,可世道不济,生活窘迫。就在此时,宋天鹏接了一个老宅闹鬼案。宋天鹏本以为凭着自己的能力和经验这个案子无非就是个恶作剧而已,很快就能结束,谁知却让他陷入了一个恩怨纠葛的案中案之中......。