What will and won't be solved on the 'How to Get Away with Murder' midseason finale according to the creator

There are dozens of threads running through this season of ABC's "How to Get Away With Murder." And as the midseason finale approaches on Thursday night, the show's creator warns it won't slow down.

"There's so much to come," Peter Nowalk told Business Insider over the phone. "Obviously, the episode is 'hold on to your seats' and watch carefully, because it's very twisty and time warp-y and it's very emotional. I'm very proud of it. I'm very proud that our writers have come up with something different for the show structurally."

The season so far has concentrated on the Hapstall case, in which a wealthy couple's adopted children are being tried for their murder. There's also the major question introduced through flash-forwards: Who shot Annalise (Viola Davis)? And, of course, there's the volatile relationships among the characters. 

Nowalk has this warning for fans:

"Be careful about your assumptions about who is involved in what and how guilty they are. That's always a general theme of the show and what we like to talk about with the criminal justice system. You hear a story and you assume one thing, but is it actually true?"

Here's what will and won't be wrapped during the midseason finale, titled "What Did We Do?":