Lee Jae-sang is a top-tier, ruthless lawyer who cares only about winning cases for his wealthy clients, regardless of the moral cost. His life takes a drastic turn after a mysterious car accident leaves him unconscious. When he wakes up, he finds himself in a parallel universe where he is a dedicated, honest prosecutor who is happily married to Ra Si-on, a detective he had broken up with in his original reality. As Jae-sang navigates this alternate life, he is forced to confront the consequences of his past choices and the corruption he once facilitated. He must learn to balance his new identity while solving complex criminal cases, all while grappling with the lingering memories of his former, colder self. The series explores themes of redemption, the impact of personal choices, and the possibility of changing one's destiny.