Ma Seok-do works as a detective squad chief. His team struggles to bust a criminal ring who originally came from Yanbian, China and led by Jang Chen.

Dong-Chul and Ji-Soo are a happily married couple. One day, Dong-Chul comes home to find his house in disarray and his wife is missing.

A man receives a wedding invitation from his first love who he met in high school.