Blind (2022)

These are crime investigation dramas with psychological thriller aspect where police trying to solve the cases and uncover the truth behind the murders.

Both dramas center on detectives and the murder cases they have to solve. In signal detectives try to solve a serial killer murder case like in blind.

Both dramas have a dark and creepy vibe and are about a serial killer connected to the past and present. Both MLs seem to have a dark side/are believed to have a dark side.