Miki goes to her sister's house to introduce her fiancé, but her brother-in-law takes notice of her. Unaware, she unwittingly seduces him. While her sister is not looking, she is raped by her brother-in-law. From then on, days of humiliation begin. Miki is coerced by her brother-in-law to satisfy the sexual needs of her mother's new husband and even endures humiliation in front of her fiancé. However, after being repeatedly violated, changes begin to stir within Miki's emotions.
