A woman along with her daughter-in-law live by killing samurai who stray in their swamp attempting to sell anything valuables that they find while Kichi, her son, is off at war. His wife begins an affair with a neighbor who survived the war, Hachi, although both are ruined when they learn that Kichi has expired. The mommy disapproves and tries to scare her daughter-in-law having a mask from a dead samurai.