Counterpart is an American science fiction thriller television series starring J. K. Simmons. It was created by Justin Marks and was first broadcast on the premium cable network Starz. The series ran for 20 episodes across two seasons.
I watched two episodes of this a while back and really liked it. It's about alternate dimensions and spycraft.
Plus it all happens in Berlin. I visited Berlin last year and loved it and obviously won't be going any time soon.