Protagonist?

Who are we supposed to be pulling for in this? The slut who's having an illegitimate child by the man she cheated on her husband with? The lover who possibly was using her for the divorce settlement money? Or the vengeful husband who wanted to see his unfaithful wife and the man that cuckolded him get screwed and is willing to kill in order to make that happen?

There is nobody to like in this story unless you are a fan of unfaithful wives who have babies out of wedlock with scumbags.