"Between Secrets and Shadows of the Past" Yoon Jeonghan, a former police investigator, finds himself adrift after being laid off due to his worsening depression. But when a murder hits too close to home, he can't stand by idly. Despite being warned by his superiors, Jeonghan resumes his investigation, driven by a need for answers. Enter Choi Seungcheol, a mysterious figure who appears out of nowhere to save Jeonghan from the brink of death-at the cost of nearly losing his own life. Burdened with the responsibility of Seungcheol's severe injuries, Jeonghan is both irritated and intrigued by the man. Unbeknownst to him, Seungcheol becomes a beacon of hope Jeonghan has longed for. "What are you doing? Have you done so much good that you're ready to throw it all away?" - Choi Seungcheol As the case grows more complex, a genius hacker-who seems to know Jeonghan's every move- the polices enemy, emerges as the key antagonist. The hacker's invasive knowledge of Jeonghan's daily life borders on obsession. A stalker? Perhaps. A mastermind? Even more likely. As Jeonghan digs deeper, Choi Seungcheol remains by his side, offering support and encouragement. But can Jeonghan untangle the web of secrets and solve the case before it's too late?