: Misako begins receiving anonymous, lewd phone calls from a stalker. It is eventually revealed that Kazuhiko is behind these calls, using them to manipulate Misako into a forbidden sexual relationship. Key Themes and Production

: Misako is sexually dissatisfied with her workaholic husband, Yosuke , and struggles to connect with her cold, rebellious stepson, Kazuhiko .

The story centers on the Amamiya family, who appear to be a picture of suburban stability but harbor deep-seated internal conflicts.