In 1938, Shanghai fell and the public concession became an isolated island.
Su Manqing, a forensic doctor who returned from studying abroad, in order to find out the truth behind her sister Su Manli's "accidental" fall from a building, moved into the "Jingyuan" where her sister worked during her lifetime - a foreign-style building hidden deep in the French Concession. In name, it is a cultural salon where celebrities gather, but in fact it has an undercurrent. In my sister's diary, apart from intermittent murmurs of admiration, there is only one strange sentence: "The person in the mirror is stealing my shadow."
