All Kim Mo-mi wanted in life was to be in the spotlight. Her double life as Mask Girl allowed her to do just that. How long until the secrets unravel?
The Cold Case Squad secretly reinvestigates the Injoo gang rape case. Lee Jae Han finds out the connection Park Hae Young has to the case.
The cold case squad figures out who the serial killer is, but not before the wrong suspect turns himself in.
During the investigation of the serial murders, Park Hae Young discovers that the radio transmissions are actually connecting him to the past.
