Knock on the Door, Thirteen Nights at the Bottom of the Huangpu River

1940, Shanghai. I am a surgeon at Renji Hospital. On the midnight of August 13th, the tide level of the Huangpu River was abnormal. I rescued a drowning Japanese man by the river - there was no water in his lungs and he smelled of rust. Just like the door at the bottom of the river. When the tide recedes, the iron gate rises from the mud. A hand stretched out from the crack in the door and knocked three long and two short in front of me. A voice came from behind the door: "When a person knocks on the door, he receives his destiny, and when he enters the door, he receives his destiny." Behind the door are thirteen doors. Each door points to a night of life and death in the city - the assassination of tycoons, smuggling of supplies, bloody battles at the docks, and Wu Song's breakout. I must open the doors one by one and use my scalpel and wisdom to protect the anchor of Shanghai's destiny from the stranglehold of the Japanese army, spies, and gangs. I met the singing girl agent of Paramount, the blind fortune teller of Chenghuang Temple, and the silent commando captain on the dock. They all stood in the shadow of the door, waiting for an answer. But the door is also telling me: I have already died once. This era is my own choice. Thirteen doors, thirteen nights. Every time you knock on the door, you are knocking on your own life. But I don't recognize it. I want this city to live until the day it deserves to live.