In 1980s Japan, where the boundaries between desire and repression intertwine, we follow the story of a young woman named Kazuko. She is a woman trapped in a loveless marriage, where monotony and frustration mark her day-to-day life. However, everything will change when the enigmatic and seductive Kōji enters her life, a man who challenges social norms and awakens a desire she thought forgotten.
Kōji becomes a mysterious figure who pulls her into a world of hidden passions, where sensuality and danger intertwine at every turn. Together, they explore a dark labyrinth of forbidden pleasures, including rituals and erotic games that challenge both their bodies and minds. As Kazuko delves deeper into this alternative life, her relationship with Kōji grows more intense, but also more dangerous.
As her thirst for liberation intensifies, Kōji's past surfaces, revealing secrets that threaten to destroy the fragile balance she has found. The tension mounts as the couple faces the wrath of those who reject their lifestyle and Kazuko's own internal demons, leading her to question whether the pursuit of happiness is worth the price of sacrifice. In a captivating game of love and pain, the decisions they make will take them to the brink of madness and ecstasy.