No no, this one is not based on a detective story in fact this is a crime drama. A man played by Sean Bean goes to prison because during drunk driving he gets him self into an accident and he gets a person killed. The whole plot of this tv show is based inside the prison where we see Sean Bean's redemption arc. The second main character the police man who is assigned at this very same prison is protecting his criminal son and this police man is told by the mafia to do dirty work for him to distribute cocaine when he refuses and even shifts his son to another prison they find out about this as well so he is forced into this and then later he goes to prison just because he had no choice but to protect his son.
In one gruesome horrific scene, Sean Bean Character has 1 year left in sentence so he is told by the mafia in prison to distribute some cocaine so when he goes he tells them he did not do this as he wants to be a free man they go to his room with billiard balls and smack his face open with multiple hits. But Sean Bean eventually succeeds by not only going out a free man from prison but also the wife of that murder commited by him through drunk driving accident also forgives him because he wrote her a letter and then later apologizes to her personally as well.
The reason why I had to write a detailed story for you is that I want you to watch this tv series as it is unlike the usual main stream hollywood stuff and is actually very good.