Sometimes, you can tell how overstuffed an episode is by what you see in the “previously on” recap before it starts. Here, we get snippets of “Handsome Tony” Ferrer floating out of the swamp where Dexter dumped him, Captain Spencer arguing with his ex-wife Becca about their son, Deb’s volleyball team drama, the botched Levi Reed trial, and a press conference about murdered judge’s son Jimmy Powell. While I’ve been on Dexter: Original Sin about having too many loose threads, I did think last week’s episode offered a bit of course correction. Now I’m back to feeling like we’re all over the place.
“The Joy of Killing” is largely about Dexter becoming a serial killer — yes, we officially cross the threshold — but it’s also about him trying to live a normal life. He’s taking…