SBS drama series “No One Knows”

SBS drama series “No One Knows” (literal title) co-starring Kim Seo-Hyung. For the drama series, Ryo Deok-Hwan will play Lee Sun-Woo. His character works as a science teacher at a middle school. He gets involved in a serial murderer case with Detective Cha Young-Jin (played by Kim Seo-Hyung). 

“No One Knows” first airs sometime during the first half of next year in South Korea.