The film tells the story of the painter Young-soo, played by Kim Joo-hyuk, and his lover Min-jeong (Lee Yoo-young). Young-soo heard from others that Min-jeong had been drinking with a strange man, which led to a quarrel between the two. Young-soo went to find Min-jeong the next day, but found that Min-jeong, or a woman who might look exactly like Min-jeong (maybe a twin, or not), was dating many strange men, and all of those men were men she had dated before...