KBM Reporter Seo-Jung Won is known as the Villain Hunter. Her show, “Nothing Uncovered,” reports about the villains who provoked the public, and her sharp comments made the show popular, making Jung Won a star reporter. However, she gets involved in a shocking incident that drags her down to the bottom, and she has to team up with her ex-lover, Kim Tae-Heon. Tae-Heon is a detective at Gangha Police Station, and he has to do everything his way. He meets Jung-Won while investigating a case and gets confused by their reunion. Woo-Jae is Jung-Won’s husband, and he's a famous mystery writer from a wealthy family. Although he’s a romantic who’s willing to do anything for Jung-Won, he has been secretly hiding his wounded heart. And now, the three are deeply involved in serial murders.