The main plot of this week's Dexter episode appeared to mirror the issue the show is currently having.

Dexter went from trying to kill Trinity to actually saving his life, as Arthur was prepared to commit suicide until his friend/enemy made a last-second save. You can read all about these developments and more in our most recent episode guide.

The same back-and-forth seems to be going on with the series itself. It's not sure where it wants to go with the Dexter/Trinity relationship.

For the majority of "Road Kill," Dexter was stuck on the issue of remorse. Did he feel badly or not after killing an innocent last week? The answer, via Dexter's internal monologue, appeared to be no, but his reaction after learning of his mistake was a resounding yes.

The most intriguing aspect of this season's storyline is how Dexter tries to forecast his own future via Arthur's life. After Trinity tried to kill himself, Dexter wondered: if this how I'll eventually go, following years of pent up sorrow and regret?

While Dexter's questioning of his own humanity is an interesting dilemma, any relationship not involving the main character is a snooze. Does anyone care about Angel and Laguerta? Is Rita really gonna cheat with her neighbor?

It all feels like filler meant to give Michael C. Hall a break from being in every single scene.

Overall, a mediocre episode. The action needs to pick up, as this week's installment simply felt like a look inside Dexter's head. That's a scary place, but not as scary as kill room that actually gets used.

Check out a few of our favorite Dexter quotes from the hour below:

Trinity: Confession is good for the soul.
Dexter: All the more proof I have no soul. | permalink

Deb: I love you, bro, but sometimes you're a f**king 'tard. | permalink

Dexter: I really do need to stab something. | permalink

Vince: I've almost banged so much tail at those geek fests. | permalink

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.