"Now it’s 1953, and Russell and his family—his long-time partner, Effi Koenen, a burgeoning star on an American sitcom, and their daughter, Rosa, a young artist on the cusp of adulthood—live a life of relative comfort in Los Angeles. Feeling somewhat adrift, Russell has just begun work on a book investigating American firms that continued doing business with Germany during Nazi occupation. Then he notices someone is tailing him around Los Angeles. Has someone not taken kindly to his research? Or could it be that the deal Russell struck all those years ago has left him with unfinished business?
The answer may lie in Berlin, where John and Effi decide to return for the Third Annual Berlin International Film Festival. Braving the political disorder of a city that was once their home, the two are thrust into a perilous mission to protect the life—and safety—they worked so hard to build."