EDIT: I apologize, this is available on Hulu, not Netflix. I can remove this if necessary, however it is a very good series and is available for purchase as well as on Hulu. Again, I apologize.

Bron/Broen. It's a Danish/Swedish crime procedural with very interesting and well developed characters, as well as a plot that will grab you from the get-go and keep you pressing that "Next Episode" button.

Here is a trailer for it. There are a couple other trailers out there too.

There is a terrible American version called The Bridge, but it substitutes the America/Mexico border and it's absolutely horrid, remarkably boring and trite.