Choi Eun-Sul (Choi Jung-Yoon) has been married for 2 years. She has a happy marriage with her husband Sang-Ho (Yoon Hee-Seok).

Eun-Sul does not know why, but she has nightmares in which her brother's fiancé Kang Yoo-Ran (Ko Na-Eun) appears. Her brother wants to meet Yoo-Ran's mother, but Yoo-Ran doesn't introduce him to her mother. Meanwhile, Sang-Ho's mother gives lingerie as a present to Eun-Sul. Eun-Sul then makes a mistake and her bag, with the lingerie, is swapped with Min-Jae's (Jung Sung-Woon) bag.

The dangerous love story of a woman who lives intensely. The drama tells the story of a woman who takes a beating because of her husband’s betrayal and misunderstanding, and lives on to rediscover love and happiness with the help of family.

Choi Eun Seol is a researcher at a cosmetics company and a young married woman who is cheerful, lively and very curious. Although she's been betrayed and deeply hurt she insists on finding her own love and happiness.