What's the situation with Audrey?

Was that Billy in the cells? If not, who?

If Coop and Diane were lovers, how come he was seeing Annie? And wouldn't that have been a better excuse for knocking back Audrey?

Richard/Linda?

When Coop calls on Laura/Carrie and says he's the FBI, she asks have you found him yet through the closed door. Found who? Has she reported the dead guy as being dead but nobody had turned up yet? Had they gone looking for the person she wanted found (or not, perhaps there wasn't one) but not bothered about the crime?

Even in a parallel universe (for want of better term), would Coop ignore the dead guy? But he wouldn't necessarily think he was in a parallel universe since he was going to "take Laura home" within that universe anyway.

How did he know about the other waitress and that it would be Laura/Carrie? Something to do with what Laura whispered to him?

If he was supposed to be preventing Laura being killed but she got away - not that she was trying - maybe she made her meeting anyway. But then her body disappeared as if she had been saved.

Do people get transported to other universes every time they travel down that road?

Who was Candie? The one who had nowhere else to go?

As many people have said in the debates, part 17 was closer to an end with part 18 being the start of a new storyline.

we heard "Laura" being called from the house. I thought it was Leland's voice but everyone else thinks Sarah.

What was the situation with Sarah anyway. At what point did she change to that thing?

Did Carrie hear Laura being called like we did, because she seemed to react to it just before she screamed.