
Naosuke becomes attracted to Iwa’s sister Osode, and threatens to expose Iemon if he will not assist in eliminating the sisters’ suspicious brother. When the brother goes to a sacred waterfall to pray for justice, the rogues stab him in the back and push him off the cliff. They return to town with a story about how they were attacked by the same bandits as before, and the pair split up to seek the non-existent bandits.
Iemon and Iwa have a child, but Iemon proves a poor husband, spending most of his nights out drinking, while Iwa begins to suffer from ill health. Iemon gambles most of his wife’s money away, but one night he inadvertently foils a mugging, causing the robbers to flee and the nobles to thank him effulsively, while Iemon instantly falls for the nobleman’s lovely daughter Ume (Junko Ikeuchi). The nobleman offers Iemon a reward, and Iemon ironically responds with the same speech about honor that Samon had given him right before Iemon had murdered him.
Meanwhile, Naosuke is frustrated that Osode refuses to marry or sleep with him until he makes good his promise to avenge her father’s death. When Iemon happens to bump into Naosuke, Naosuke wonders whether he can pull off the murdering bandits gimmick a third time, but resolves that he’ll need another plan. Naosuke comes up with the idea of procuring some poison to kill Iwa to make way for Iemon to marry Ume. Because the portly village massues Takuetsu (Jun Otomo) is constantly coming by to see the ailing Iwa, a rumor has sprung up that the pair are having an affair. Naosuke sees how Iemon can claim to have caught the pair in flagrante to justify the murder of his wife. Dishonorable to the core, Iemon readily agrees to the plan and conspires to make Takuetsu his patsy.
In a telling scene, Iwa cries tears of joy that her husband has started treating her kindly for a change, apparently attempting to see to her happiness rather than being thoroughly selfish all the time. Little does she realize that his thoughtfulness in giving her the medicine she requires is simply a ruse to provide poison in her cup of tea. Takuetsu comes to give her a massage and starts coming on to her because Iemon has suggested that she fancies the doctor: however, Iwa, innocent and loyal to her faithless husband, is shocked by Takuetsu’s behavior.