Anachronisms: Karl Koch collapses right after the Chernobyl accident (April 1986). On what seems to be the next morning in the movie, "Glücksrad" is on the TV in the hospital. The show started on German TV no sooner than 7 November 1988.
Anachronisms: Late '90s cars parked in the street in scenes set in the '80s.
Factual errors: The BKA (Bundeskriminalamt) is located in Wiesbaden, not in Köln (Cologne) as mentioned in the movie.