Sinopsis momentánea en inglés: Revanchist, set in the not-so-distant past, follows two young brothers as they attempt to make it in Shanghai. After rescuing a respected gang leader from an assassination attempt, they are inducted into a powerful triad sect. Flash forward a decade, the brothers are grown up and rising in the ranks, but their success is shattered by a violent incident. While working security in a brothel, the younger brother, Fay (Chang Jian-Li), becomes embroiled in an argument with a racist foreigner. In the heat of the moment, he shoots the filthy gweilo dead. His older brother, Fong (Lau Sek-Ming), takes the murder rap and is sent to prison leaving Fay to raise the money to get him out (because Shanghai is super corrupt like that).
The film then takes the first of a handful of significant narrative turns, placing its focus on Fay. Fay gets back to work with his gang and is sent undercover to find out whether a rival gang led by Shu (Wang Hsieh) is collaborating with the invading Japanese. Undercover, Fay comes head to head with Shu’s scummy right hand man and martial arts master, Ti Chi (Zhang Feng-Yi), and things get really bloody and really messy and occasionally sexy.
https://hkmdb.com/db/movies/view.mhtml?id=10134&display_set=eng
