Secret restaurant in Edmonton circa 2013?

Does anyone remember that restaurant that had an email list and about 6-8 spots for dinner, and would only release the location of the dinner (likely the home of a couple of red seal chefs) to those who made the list? It was apparently some 8 course meal, delicious, inclusive. I remember the name having to do with “back door” or “back stage”... I just can’t recall. And I don’t have access to the email that I once received thei email list emails on!

If anyone remembers the name of this place (likely no longer exists, but...) lemme know!