Identical twins Han Soo Ho and Han Kang Ho lead contrasting lives. Soo Ho is an upright judge, while Kang Ho is a convicted criminal. When Soo Ho vanishes, Kang Ho assumes his identity as a judge, living a new life adhering to the law.

Two identical twins, Han Soo Ho and Han Kang Ho, look exactly alike but lead entirely different lives. Han Soo Ho is a respectable judge who does everything by the book, while Han Kang Ho is not only a convicted criminal but a repeat offender. When Han Soo Ho suddenly disappears, Han Kang Ho ends up taking his brother's place and living a new life as a judge.