The insubordinate and impulsive Jung is a thorn in his captain’s side.
But he proves everyone wrong when it's discovered that there’s truth to Jung’s hunch about a series of seemingly random roadside murders.
One day the killer picks the wrong victim: gang boss Jang, driving home from a beatdown with a rival mobster. Jang, though taken by surprise, is a powerful boxer and he not only survives the attack, but wounds and drives off his attacker.
As the first and only witness to the serial killer Cop Jung will now need to work with gangster Jang in order to bring down the serial killer at hand.