Can you actually not show what your true colors are while working with a lot of people? Eun Hwan Ki, the director of the top public relations agency, is a mysterious man known as “The Silent Monster.” No one knows much about him because he always avoids eye contact and appears coldly aloof and arrogant, but in truth he’s an extreme introvert — a PR executive who hates attention and is too shy to be around people. Chae Ro Woon begins to work at Eun Hwan Ki’s company. She is very energetic, the extroverted type and receives recognition for her work, but her only interest is in CEO Eun Hwan Ki. She plans to reveal who Eun Hwan-Ki really is.

Reunited in their hometown for their father's funeral, two self-interested brothers meet a peculiar woman who shares a huge secret about their family.

Two apathetic police academy recruits who become best buddies through the tough training together witness a woman being abducted right before their very eyes. As they were taught in the academy, they quickly report the incident to the police, but the police are in no hurry to jump on the case. So the duo decide to take the matter into their own hands and rescue the woman.

Jae-ho, who aims to become the number one in a crime organization, gets to build up trust with Hyun-su, an ambitious newbie in the prison. While they try to take over the organization after the prison release, their ulterior motives starts to emerge.