Teaser trailer #4 and 3 character posters added for tvN drama series “Psychopath Diary” starring Yoon Si-Yoon, Jung In-Sun & Park Sung-Hoon. Teaser trailer #4 begins with Yoon Si-Yoon narrating with “This diary is telling me that I’m a serial killer. And I can run 4 kilometers at once tirelessly.” In the teaser trailer, Yoon So-Yoon is struggling after running while Jung In-Sun as Police Officer Sim Bo-Kyung peeks out at him. The 3 character posters are of Yoon So-Yoon as Yook Dong-Sik, Jung In-Sun as Sim Bo-Kyung, and Park Sung-Hoon as Seo In-Woo.
“Psychopath Diary” first airs November 20, 2019 in South Korea.