A Love To Kill is a good melodrama :)
I understand you don't like watching currently airing shows, but after it airs finish, you should watch Secret. Shark was the last melodrama-revenge that I watched, which I loved :) I'm currently watching Secret on KBS, it's very good and I'm already pretty hooked. I won't say hooked ( I don't get hooked from the first few episodes easily, it usually take like 6 ep to hook me), but at ep 4 of Secret, I already almost-hooked! Give it a shot! The male lead Ji Sung is handsome as well