The Trail of Blood 1972 ( 6.3)

Can a sinful man change and find peace? It's unlikely in gang-plagued Japan. Jokichi of Mikogami, a drifter (and hired sword), goes straight after protecting a woman in distress: they marry, have a son, and Jokichi pursues his father's craft. After three years, the gangs he embarrassed when he saved his wife find the family and leave Jokichi in grief, vowing revenge. To parry his terrible swift sword, rival gangs join forces, hiring a prostitute to pose as a woman needing help and breaking the code of honor to double cross the drifter. He finds unlikely allies: a thief who aids him for fun and a one-eyed swordsman who may be Jokichi's equal in skill and honor.

Withered Tree, the Adventures of Monjiro 1972 ( 7.6)

Kogarashi Monjiro is a lone samurai who agrees to take responsibility for a murder that his friend committed so that he can stay with his dying mother, with the expectation that his friend will confess and get him pardoned once she dies. Monjiro is sentenced to an island for prisoners. When he discovers that his friend's mother has died over a year ago, Monjiro seeks to escape with a group of prisoners in order to get his revenge.

Taxi Driver's Mystery Diary 37 - Mystery of Double Homicides from Tokyo to Hamamatsu 2015 ( 4.3)