Queen of Mystery Season 2 Episode 9 Episode 9 ( Air Date 2018-03-28 ) Genre Comedy, Mystery, Crime category. Overview "Yoo Seol-Ok liked mystery novels and wanted to become a detective, but she gave up her dream after marrying. Now, she is a housewife with a husband who works as a prosecutor. She meets Ha Wan-Seung. He is a passionate detective and they decide to collaborate to solve cases.".