The show will tell the story of a mysterious red line that appears above people?s heads, connecting them to those they?ve had sexual relations with. Han Ji Uk is a detective who wants to discover the truth about the mysterious red line. Gyu Jin is a quirky high school teacher and Hyun Heup is a high school student who has been able to see the red line since birth. #series #korean #koreanseries #lgbtq #bl
