The Prosecutor's Secret Therapy

Han Seo-yeon needs money for her grandmother's operation, and Lee Ji-hyeok needs a treatment only she can give him. They sign a private contract for it, written with one of them as master and the other as servant, and start living in the same house. Ji-hyeok is a prosecutor. Something that happened to him as a child left him unable to respond physically to women, and Seo-yeon is the one exception, which is why he came to her in the first place. She works in emergency medicine. The nights are part of the treatment, and over the months under the same roof the feelings between them change. Ji-hyeok also turns up evidence about the car crash that killed his father years earlier. His stepfather Kang Man-cheol, a vice president in the family's company group, was behind it, and there are bigger interests standing behind Kang Man-cheol. Seo-yeon stays with him and they go after the family together.