This drama is a really good deviation from the standard K-drama of rich guy, poor girl falling in love and running into problems as a result of their upbringings. Rarely touching on the relationship between the two main characters, the drama really focuses on the internal struggles that they face due to their past as well as external struggles due to their jobs. Keeps you to the edge of your seat with good cliffhangers and suspenseful moments. Must watch for the crime series fan and for people who want something outside of a traditional K-drama.