Both dramas features a who dunnit plot with a school element mixed into it.

While Law School is more ensemble cast than Connection which focuses more on the ML, they are similar in which main casts are well written well with depths and portrayed by great acting.

Both are thrillers which revolve around a married couple, where the husband is keeping a secret from his wife, and the wife trying to figure out what it is. The female leads are strong individuals having to face that the person they love might not seem who they are . In both dramas the couple has a daughter where they have to navigate that too.

Both MLs are both morally grey characters who don't mind "playing the bad guy" to get revenge for their loved ones, they both have tragic backstories and has their own little team to help them on their quest for revenge. They both work for the law, although Jang Do Han is a prosecutor while Kang Yo Han is a judge.

Both stories revolves around taking down corrupt officials and politicians, but deep down it's more about getting revenge for their loved ones.

A layered plot with a side of mystery that's slowly unraveling as the show goes on, they are both set in a small town with interesting and morally grey characters. While the genre is different, both shows ask the question: How does your upbringing shape you as a person?

ML also plays a younger version of the main character in this. Also, they have the same director.