北邑司大统领张小梅因梦中惨痛情缘无心婚配，伪装江州张府少爷，散播失落千年血珊瑚在他手中的谣言，一心引杀千刀来偷。退休暗探周青竹因过交不出房租、医馆即将被收走，为了保住医馆重出江湖，接下了针对血珊瑚的窃取计划。周青竹潜伏至张小梅身边，其实青梅二人的相遇全是张贵妃的设计，她知晓二人前情渊源，困锁深宫的她只盼撮合二人。
The film takes place in Toulouse and tells the story of Jean, a 55 year-old policeman who discovers his son, Maxime, and his son's boyfriend hanged in a hotel room. The autopsy shows that he died from an overdose of GHB, just seven minutes after his boyfriend. During an evening organized by Maxime's friends, Jean discovers the club BISOU, where his son used to go. There, he meets Fabien. Trying to know more about what happened, Jean goes to the club several times over and is quickly welcomed by the Bisouers. Fabien becomes attached to him, and Jean starts mixing his mourning with the desire to discover his son's world.
故事发生在一座名为伊奥鲁夫的城市中，在这里出生的人们拥有无限的寿命，外表却会定格在15岁的模样，玛奇亚（石见舞菜香 配音）就是这样一个土生土长的伊奥鲁夫少女。一天，为了抢夺永生之血，梅萨蒂军乘坐着古代神兽对伊奥鲁夫发动了空袭，造成了惨重的损失，玛奇亚的好友蕾莉亚（茅野爱衣 配音）被掠走了，和蕾莉亚一起失踪的，还有玛奇亚暗恋的少年克里姆（梶裕贵 配音）。