Erotic Ghost Story: Succubus in Edo

Sasayama Heijuurou, a masterless samurai, is deeply in debt, so he bigins to substitute for a watch gurad of a gibbeted head. One night, Heijuurou chatches a girl who tries to steal the head. She is a daughter of this criminal. Heijuurou want to get her, and he says, "Make love to me for three days , so You'll get your father's head.". Omaki, Heijuurou's lover, instigates Heijuurou to trade her to a prostitute, and Heijuurou agrees it. After Kinbei, a moneylender, has sized up a girl, Heijuurou and Omaki change them mind and kill Kinbei. A girl makes noise. Heijuurou tries to stop her from screaming, but he killed her accidentalle. After then, A girl's ghost visits Heijuurou and Omaki, and askes them, "Please give back me my father's head"...