The new tvN Monday-Tuesday drama "Catch the Ghost" directed by "Rooftop Prince" is set in the subway police team. It tells the story of the nonsensical romantic and funny investigation between the "action-oriented newcomers" and "thinking veterans" of the subway police team in order to catch the elusive ghosts. In the play, Kim Sun-ho plays the male protagonist "Ko Ji-seok", who has been a detective and the squad leader of the first investigation team in the Wangsimni subway police team for 3 years. As the top graduate of the police university, he is cautious, steady and disciplined. Moon Geun-young plays the female protagonist "Yoo Rim", a rookie detective in the subway police team. In order to find the missing autistic twin brothers, she uses her special spatial perception ability to support the subway police team and meets her fateful partner, the squad leader of the police team, Ko Ji-seok.