A prison guard, he became a lawyer and eventually a parole examiner. He wants revenge for his chief who was unfairly accused and detained. He achieves this goal with the help of 2 women. Excellent alliance with Ms. Choi Hwa Ran, a character that I really liked.
I didn't know that there was such a commission that considered the release of certain prisoners. Unfortunately there too with judges who give in to corruption.
I found the case of the girl who had the child in prison particularly touching.