Musho Yaburi (1969)

Set up to be the patsy by a rival gang, Furuta Makoto attacks the yakuza boss he thinks is responsible for his father’s murder. He then learns it was all a plot to take over his father’s turf and he seeks vengeance against the puppet master behind the entire conspiracy. His quest for justice leads him to prison where he must fend off the attack of a master assassin before he can make his escape and go after the true killer!