A Gentleman's Dignity is a drama about the careers and love lives of urban professionals. It tells the story of four men in their forties as they go through love, breakup, success and failure. Kim Do Jin, an architect with a scathing tongue, has a romantic relationship with strict high school teacher Seo Yi Soo, who moonlights as an umpire at amateur baseball games. Im Tae San is dating a cold-hearted woman but wonders if there is someone else out there for him. Choi Yoon tries to heal his heart after losing his wife seven years ago. Lee Jung-rok marries an older woman for money but may lose his comfortable lifestyle in a divorce.