Well, the show is going deeper into its "mythology," and that's generally a good thing. Here, we are given hints that something very nasty is coming after our Grimm detective. Whatever it is, it's enough to scare a bee monster right out of its pollen. Let's hope it doesn't disappoint.
There's a brief ethical dilemma as our detective is forced into helping the ugly thing (a hexenbiest) that tried to kill his aunt and injected him with spider venom, or helping the bee thing who is a murderer but is murdering hexenbiests which might not be a bad thing at all. Obviously having the cop badge is both a blessing and a curse. It will be interesting to see what choices he'll have to make.
Oh, the one real dumb thing that happened last night was one of those things that if the character would think for three seconds it would have saved a lot of trouble. Look, if you open the door to a room and it's full of bees, and if you try to close the window the bees are coming in from and it won't close; then then answer is not to stay in the room while trying to keep closing a window that won't close. The logical thing to do is retreat. Then close the door to the room and stuff whatever you can into the door cracks. You will get stung a lot less. Trust me.