Julian (Gosling) lives in exile in Bangkok where he runs a Thai boxing club as a front for the family’s drugs smuggling operation. When Julian’s brother Billy is killed their mother, Jenna (Kristen Scott Thomas), arrives in the city. She wants revenge and forces Julian to find the killer. Julian’s contacts in the criminal underworld lead him directly to The Angel of Vengeance, a retired police officer who knows everything and who is both Judge and Punisher. Jenna demands that Julian kill The Angel of Vengeance, an act that will cost him dearly.
source: Geek Tyrant