John thinks life is just perfect. He's in what he considers a solid relationship with girlfriend Mary and his job as a tailor suits him down to the ground. To put the icing on the cake he's about to ask Mary to marry him over the dinner which John has cooked especially. With the ring ready for Mary's hand, John is unprepared for Mary announcing that she's leaving him to find herself.

昆曲明星素素嫁给了一位英国贵族，成为古堡女主人，人生却以神秘自杀暗淡收场。数年后，中国少女七安与爱墨意外收到来自古堡的邀请。旅程试想未知，她们却渐渐接近真相，却也身陷囫囵，无路可逃...