Law & Order S12E20 - Dazzled

When a "gold digging" wife is found dead, there are plenty of possible perpetrators. Her husband has become "whipped" and blinded by his young wife and then messes up his story to Briscoe and Green. When he finally comes around, it seems that the wife's ex-boyfriend was getting revenge for being fired from a contracting job. The medical examiner uncovers some more clues which point to a bitter alcoholic ex-wife. Eventually, the criminal comes forward but the only crime she has committed is trying to save her family.