A prosecutor has lost his memory and discovers that he is convicted on death row. He is now left with no option but to find the truth behind his condition and prove his innocence.

Park Jeong Woo is a prosecutor at Seoul Central District Prosecutors' Office. One day, he wakes up and finds himself a convict on death row. Suffering from temporary amnesia, Jeong Woo has no idea what transpired to land him in prison. He struggles to recover his memory and clear his name before his time is up.