The film tells a day in the life of Alex, who lives in present-day Berlin and is actually just an extra in his own life.
Things happen to him without him contributing much or influencing them.
So he doesn't notice that his roommate and work colleague Klaus, is addicted to the idea that he ( Klaus ) would be, the illegitimate son of Evita Peron and King George VI of England and secret services of this world would try to kill him.
Therefore Klaus also thinks Alex is an agent and tries to kill him in the course of this day, which leads to Alex losing his job, being pursued, accompanied and almost killed by a furious young lady ( Carolina ).
Alex day flies in the downright around the ears and develops into a breathless chase through the cold, fast and repellent Berlin.