signal

Signal is Korea's representative mystery drama, which aired in 2016, and is still very popular in Korea.

Signal was based on real crime cases that occurred between 1999 and 2015, and was planned based on the hope and wish that there should be no more hurting victims' families.

There can never be a perfect crime, and the price for sin must be paid.

Past and present connected by radio.

Past detectives and present detectives, their earnestness solves the unsolved case!

It was highly praised for its complex plot and in-depth character portrayal, and the thriller-like fun that develops along with the moving story that is characteristic of Korean dramas was also a factor in its popularity.