Seo Jung-won is a famous journalist and the host of a current events TV program. She has broken many exclusive news stories. In her personal life, she is married to Seol Woo-jae, who comes from a rich family. Her life seems perfect, but everything suddenly changes. The mistress that her husband was seeing dies. Seo Jung-won is distraught that her husband was having an affair. Making matters worse, she becomes the suspect in the mistress's murder case. She finds an ally in Detective Kim Tae-heon. They work together to uncover the truth behind the murder case.