While I may not know much background on the main characters since I still haven't seen the first three episode, "Justine" was an awesome episode and just as good an episode as any for me to be introduced to "Touching Evil".
Our main characters are investigating the murders of several women who are all dressed the same way, a fantasy of the killer who is in love with a woman named Justine, currently in prison. They work with Justine to find the killer.
This episode was pretty dark and I have to wonder if this could ever air on network television. The writing was extremely good. I started the episode, intending to watch a bit and finish it later, but it was so good and addicting I had watched the whole thing before realizing it. This is definitely no "CSI", and that's a good thing. It's a breath of fresh air to the dying crime genre, and on the same level of addictiveness and just plain awesomeness of "The Inside".
I can't wait to watch the rest of the series.