The play tells the story of the chairman of the consortium whose life was threatened by the succession war of the Huaren Group and the bodyguard who protected her. The two faced the secrets of the group together.

Oh Wan-soo (played by Kim Ha-neul) became a world-class golfer on her own, and then married into a wealthy family. She suffered from her husband's affair for a long time. After experiencing a thrilling night filled with bullets, her life completely changed and she re-examined her marriage and life., and even formed a forbidden romance with her bodyguard Seo Do-yun (played by Jung Ji-hoon). However, what she didn't know was that the real purpose of Seo Do-yun entering the Huaren Group was far darker and more complicated than she imagined.