At the company run by female CEO Mai, failing employee Yamanoi is singled out by her and forced into unreasonable overtime. Subjected to sexual humiliation and degradation, he resolves to take revenge. Hiring a secret organization to carry out his revenge on his behalf, Mai initially responds with arrogant defiance. However, as she is subjected to torture methods such as guillotine restraints and upside-down deep throat, she gradually breaks down under mounting pain and terror.