Byung Hyun meets Soo Ji at a social dance class. He falls in love with her.

Do Tae Rang must keep things nice and clean all the time. He won't allow any stains. He happens to work at a cleaning service for crime scenes. The service is run by Mo An Na and Do Tae Rang is the company's only employee. While they clean up a criminal site, Mo An Na and Do Tae Rang uncover a truth.

Go Nam Young dreams of writing her own novel. She agonizes over whether to quit the company where she works and pursue her dream. She has dated Kim Won Jae for a long time, but an unexpected case leads to their breakup. Go Nam Young seeks to find her own happiness.