In 1928, the flames of the Northern Expedition had died down, and Shanghai was alive with music and dancing. Zhang Junsheng, the son of a wealthy family, is kidnapped during his birthday banquet. To save the man she loves, designer Song Qinian turns to banker Fu Chengxu for help. In exchange, she must steal a jade disc for him. It turns out that the refined socialite image she presents is a sham: Song Qinian is actually the notorious thief “Jade Cat,” who faked her own death and vanished. As they work to recover the national treasure, Fu Chengxu is drawn to Song Qinian’s resilience and independence. Song Qinian, too, finds her soul in tune with Fu Chengxu’s. Fighting side by side, they fall for each other. But after their friend Jiang Yingyue dies unexpectedly, Song Qinian discovers that Fu Chengxu has been using the hunt for the antiques to search for his enemy all along, and that she is merely a pawn in his grand plan…