In a bustling city, Michiko finds herself entangled in a web of desire and deception within the confines of her shared apartment. Living with a seemingly perfect couple, her roommates, Michiko becomes an unwitting witness to their passionate relationship. However, behind closed doors, Michiko and the boyfriend find themselves irresistibly drawn to each other, succumbing to the thrill of forbidden love. As their affair intensifies, the trio's once harmonious existence shatters, giving rise to a tale of insatiable lust, heartbreaking betrayal, and the intoxicating allure of a dangerous romance.