Although he was poor, detective Baek Hong Suk made an honest living. However, his poor yet happy family is shattered when his 15-year-old daughter dies. When people tarnish the name of his daughter, who means everything to him, Hong Suk vows to reveal the truth behind his daughter’s wrongful death and digs up the truth. In his search, he comes to face a stronger mastermind than expected.
Detective Baek Hong Seok lost his 15-year-old daughter in a car accident, and his wife died from shock shortly afterwards. Detective Baek Hong Seok then searches for the truth related to his daughter's death and learns that her death is tied to a conspiracy. Reporter Seo Ji Won is the owner's daughter of a large corporation. She helps Detective Baek Hong Seok to uncover the truth about his daughter's death. While covering the story, she finds out that her brother-in-law, a top presidential candidate, is involved in corruption. Reporter Seo Ji Won comes into conflict between her family and the truth.