This film focuses on Okatsu; the adopted daughter of a master swordsman. She is a master with a sword herself and her talents far overshadow that of her brother, and real child of the man who adopted her. Her brother unfortunately has a gambling habit, and it plunges the family into trouble when he loses a lot of money in a crooked dice game. After releasing he is unable to pay the debt he owes; the blame is shouldered by the father, who is killed, leading Okatsu on a path of revenge.
When an American is murdered in a Japanese inn, Tokyo police detective Munesue follows the trail of the killer to New York. There he is joined by a New York City detective named Shuftan and together they sort out the crime.
Three closely associated gamblers have adventures in Yokohama, Hokkaido, and Macao. Gambling trio endure hardships to rescue Naojiro’s family.
