Im Sung Jae

Diagnosed with autism spectrum disorder, 27-year-old Woo Young Woo graduated at the top of her class from the prestigious Seoul National University for both college and law school due to her high IQ of 164, impressive memory, and creative thought process. Working as a lawyer, she finds herself struggling when it comes to social interactions. (Source: Soompi; Edited by MyDramaList)

A series of disappearances take place in Gangnam, Seoul. Jae Hui works for a famous bar in Gangnam and she knows a secret involving the series of disappearances, but she also disappears. People who become involved with the case include Detective Kang Dong U, who was demoted and then returned to work, Gangnam outlaw Yun Gil Ho, who put himself on the list of suspects, and Prosecutor Min Seo Jin, who works on this case as an opportunity to raise her status. They chase after the truth of the case for different reasons. (Source: AsianWiki)