[3] The film tells the story of Niiro Tsurichiyo (Mifune) as the illegitimate son of a powerful nobleman, and the way of his life that made him a swordfighter but also a social outcast.

He joins forces with the multiple clans against the Lord of Hikone, Sir Ii Kamonnokami Naosuke.

This, in turn, led to an assassination plot hatched by the three provinces in order to remove Ii from his position of power.

The film is based on a novel, which in turn was inspired by the historical Sakuradamon incident, in which the feudal lord Ii Naosuke was assassinated outside the Sakurada Gate of Edo Castle.

of Variety declared that samurai film was not "superb" but "very good", noting that Toshiro Mifune and "the entire cast, particularly the men, give excellent portrayals" and that Hiroshi Murai's "crisp black and white photography is more effective in the outdoor, dead-of-winter panoramas and fight scenes"[4]