tvN supernatural detective drama "Who Are You". It tells the story of detectives played by So Yi-hyun and Taecyeon who solve cases by communicating with the souls left in physical evidence. So Yi-hyun plays a detective who fell asleep for 6 years due to an accident and has a special ability to see the souls of the dead after waking up. Taecyeon plays a passionate detective who only believes in what he sees with his own eyes and is assigned to So Yi-hyun as a subordinate because he often gets into trouble. It will be the sequel to "Love Operation Team".