Takeshi, a popular chef at the three-star restaurant Himekawa, suffers mass food poisoning and is criticized for it on SNS. Reiko is worried about her son and takes him on a hot spring trip. Takeshi loses the will to live but feels sexual desire for his mother's body. The two greedily pursue each other with more passion than Reiko and her son, who try to cheer up Takeshi by offering their bodies to him...
