From illicit love letters to political bribes, everyone has a secret, and it’s the threat of exposure that’s key to this crime -- and we discovered a whole lot of surprising examples along the way -- including a man who built his own submarine, hoping to escape with his payout under Lake Michigan; it sounds made up, but we speak the truth. We have enjoyed sharing these sometimes-almost-unbelievable stories of crime and criminals with you. Listen as Holly and Maria share their favorite shows and drinks from the season in our 'Blackmail' season finale. See omnystudio.com/listener for privacy information.