A police investigator cracks down on yakuza business, but once he realizes the police are in negotiations with certain factions, he sides with his own syndicate of choice.

Two short stories set in Edo during the Shogun era. The first, during a time when Christians are persecuted vehemently, Iori falls in love with a young Christian girl. When she and her family are captured during a raid, his sadistic master takes her as his personal slave to torment Iori. The second follows Sutezo who, forced to serve the barbarous master of a brothel in order to repay his debts, befriends a young girl. Together, they both escape and struggle to get by on scams and petty theft.

Iemon Fukasawa, a masterless samurai, marries Oiwa but is repulsed by a dark mark on her face. He descends into alcoholism and starts an affair with O-hana, a maid carrying another man’s child. Together, they conspire to poison Oiwa, killing her and disposing of her body in a moat. But Oiwa’s vengeful spirit rises from the depths, seeking revenge.

Set in Kawasaki in 1925, Challenge at Dawn is based on the Tsurumi Riot Incident, which actually ocurred in Yokohama that year and was sparked by corruption and yakuza involvement in the construction industry.