Cliff Wildman
WildMember
That said, I am not entirely sure how Constance turns into a series.
you'd be breaking away from some of the mood and pacing you set here, but 36-48 minutes is doable for this. you'd need some subplot (i think something about the cook in the restaurant would be fascinating:grin
it's not easy, but this would end up being a near feature that you can watch episodically or through the series as one piece.
of course, you have to like the idea of adapting this to a new format. i can see how you wouldn't want to do that.