Private Investigator Ji Hyun Soo finds himself in a difficult situation when he is framed for a murder he didn't commit. Determined to clear his name and bring the true culprit to justice, he embarks on a race against time to find evidence to exonerate him. However, his investigation leads him down a dangerous path, where he becomes embroiled in a significant case that threatens to consume him. With only a week to prove his innocence, Ji Hyun Soo turns to Prosecutor Kim Hwa Jin for help. Despite their initial animosity towards each other, they must work together to uncover the truth behind the murder and clear Ji Hyun Soo's name. As they delve deeper into the case, they find a web of deceit and corruption that implicates some of society's most influential people. Ji Hyun Soo and Kim Hwa Jin face numerous challenges and obstacles, from corrupt officials to dangerous criminals. However, their determination and tenacity never waver, and they continue fighting for justice until the end. They also find themselves drawn to each other in the process, as they share a common goal and a deep sense of justice. In the end, Ji Hyun Soo and Kim Hwa Jin's partnership clears Ji Hyun Soo's name and brings the actual criminals to justice. Their story is a testament to the power of perseverance, teamwork, and the pursuit of justice, even in the face of overwhelming odds.