Cho Jin-woong

A cold-case profiler in 2015 and a detective in 1989 work together to solve a series of related murders spanning three decades using a special walkie-talkie to communicate with each other.

In 1930s Korea, a girl is hired as a handmaiden to a Japanese heiress who lives a secluded life on a countryside estate. But the maid has a secret: She is a pickpocket recruited by a swindler to help seduce the Lady and steal her fortune.

A bad guy, a cruel guy, a lame guy, a cowardly guy and the meanest woman gets involved in a beautiful university student's murder case.