Shanghai, China, 1930. When young Shuisheng arrives from the countryside, his uncle Liushu puts him at the service of Bijou, the mistress of Laoda, supreme boss of the Tang Triad, constantly threatened by his enemies, both those he knows and those lurking in the shadows.
Ding Hui is a member of Purple Butterfly, a powerful resistance group in Japanese occupied Shanghai. An unexpected encounter reunites her with Itami, an ex-lover and officer with a secret police unit tasked with dismantling Purple Butterfly.
The tense hours on board a stricken passenger aircraft that was on a routine flight from Shanghai to Beijing. Shortly after taking off, the pilot Li Jiatang discovers that the plane's landing gear is unable to be retracted. Unable to continue, but unable to land, he and his flight attendant wife Qiu Xiehua, are forced to circle Shanghai. Meanwhile, on the ground, a troubleshooter Liu Yuan is called to see if he can get the aircraft safely back on the ground.
