The cast is rounding out for the upcoming jTBC drama Monster, but there is still no word on what the drama is about. Despite the scary sounding name, I don’t think it’s a horror, and most likely a murder detective mystery genre. Maybe? Starring the dual male leads of Shin Ha Kyun and Yeo Jin Gu, the cast is adding rookie actress Choi Sung Eun who has a lead role in one of the SF8 episodes (Astronaut Join) and was in the movie Start Up last year. The drama is from the PD of Moment of 18 and the screenwriter of Mad Dog, with an eye towards late 2020 airing.