Tells the story of a tough and rogue female detective, who one day loses all of her memories and changes places with a conservative housewife who looks just like her. Jo Yeon Joo is a prosecutor and the only daughter of the action-taker in a gangster group. It’s reported that while chasing a suspect who looks very similar to her, she gets into a mysterious car accident. Her life changes when she wakes up from a coma with her life swapped with that of the youngest daughter of a chaebol in the top 20 of the financial world. The woman is also the daughter-in-law of BK Group, one of the leading groups in Korea, following an arranged marriage she didn’t want. Han Seung Wook is a chaebol, who still has pure feelings about his first love. Although he left Korea because he felt the cold-bloodedness of money and power through a fight for inheritance, the character steps up again to find the truth behind his father’s dishonorable death. In the process, he meets his first love again, and he strives to not lose the things he has been given anymore.