Yoon-jeong asks her mother to take care of her daughter and then she leaves on a secret romantic trip with a man in her neighborhood while her husband is away from home for a business trip. The man and the woman on their secret two night three day trip forget about anything about law, morals, or common sense. They follow their instinct to satisfy the desire for each other’s body all day long. The endless desire would not drive away from her body.

The tale of former teacher and student, Oh Eun Soo and Kim Bit Na, who meet again years later after they married brothers, Yoon Soo Ho and Yoon Soo Hyun. They even become stepsisters after remarriage of their parents.