One day, Hitomi, a full-time housewife, receives a call from her only son's school informing her of a scandal. She is shocked by her son's misconduct, but what shocks Hitomi even more is that the other boy's parents are Kanon , a mom friend with a bad reputation in the neighborhood. Hitomi bows her head and puts up with Kanon 's persistent complaints, but for some reason Kanon knows about Hitomi's infidelity and begins to make even more extreme demands.