Counterpart (2017)

J. K. Simmons plays a junior clerk at a United Nations agency in Berlin who has spent decades swapping coded phrases across a table without ever being told what the job is for. The answer turns up in the shape of a far harder man: himself, from a parallel Earth. Starz cancelled this spy thriller after two seasons, though the second finale works as an ending while leaving a wider future open. Watching Simmons size himself up is reason enough to start; for a Silo fan the deeper pleasure is a bureaucracy built entirely on need-to-know.