JI Hyeong-do (SO Ji-sub) appears to be an employee at a metal processing company, but in fact he works for a contract killing firm. Among young colleagues, Hun (KIM Dong-jun) reminds him of his younger days. One day, while he was on a mission with Hun, he finds himself hesitating a second for some reason and stands against the company he invested everything in his life. His relationship Hun’s mother (LEE Mi-youn) made him feel the happiness of normal life for the first time, so he starts to long for it. But one of his superiors Jong-tae (KWAK Do-won) has kept his eyes on JI Hyeong-do and finds out that he has changed. Professional killer JI Hyeong-do struggles to quit his job for the love he hound and ends up being targeted by the company. A Company Man is basically a noir film about a man longing to shift from the dark world to a new world, but from another point of view, it carries the reality that a contract killer is a salary man after all. Smooth and speedy action of ‘Systema’, known as Russian special forces’ martial art, adds real action to the film. They didn’t have to edit the film to make the action look fast because the martial art itself is already fast enough. The audiences will be excited to see the real fights of killers.