Husband harbored suspicion toward his wife, Noriko, who showed no interest in sex with him. The reason was that Noriko had been satisfying her sexual desires with their son. Feeling guilty yet increasingly aroused by the forbidden act, Noriko's soaking, squirting pussy had become dependent solely on her son's cock. Though the husband pretended not to see what was happening, he was deeply shaken inside. His wife's infidelity and her relationship with their son gradually destroyed his mental stability. Amid this turmoil, the relationship between the three grew ever more complicated.