I think. this is this game is the best (or one of the best) written adventure i have ever played. It is at least in the same league as Gabriel Knight 1 oder 3 (storywise).
It would have a great potetial for a movie or a netflix series.
Not sure if you're aware, but the game is heavily indebted to The Dresden Files books, which were indeed made into a TV series ~10/11 years ago.
Although the adaptation wasn't particularly good (love the books though).
Unavowed also rather reminded me of Hellblazer - a comic series that has been adapted into a movie (which was terrible) and more recently also a TV series (which was actually decently close to source material).