I just don't like historical that turns to be "historical". And I don't like drama as I have plenty of that in RL.
Other stuff you mentioned I do adore: diverse plot lines, mystery, crime, deep characters - and am currently following a rather exotic series
Метод aka Method. If there were no certain cheesy scenes characteristic for russian cinema (awkward chase through woods for example) this thing would have been a masterpiece. Came close though.
One more thing, the story summary on imdb is partially misleading bullshit.
If this gem is not airing on some channel available in your area, it's available (legally) on youtube however without any subtitles, so if you don't speak russian, try with fan made subtitles. If there are any, when I say exotic it also means rather unknown outside of it's country of origin.
No, I don't speak russian, so don't look at me. If i did I'd translate this to english myself, it's that good. Yes I know grammar police would be on my trail after that…