Agitator

A young, rowdy yakuza winds up dead after taking too many liberties at a rival gang’s night club. This leads to an escalation of violence which results in the death of a boss. His underling and close friend Kenzaki Kunihiko
vows revenge and an all-out blood bath ensues. ~~ Agitator is a Japanese gangster movie directed by Takashi Miike and based on a story by Shigenori Takechi.