Alex Kerner's mother was in a coma while the Berlin wall fell. When she wakes up he must try to keep her from learning what happened (as she was an avid communist supporter) to avoid shocking her which could lead to another heart attack.
Beneath the decadence of 1929 Berlin, lies an underworld city of sin. Police investigator Gereon Rath has been transferred from Cologne to the epicenter of political and social changes in the Golden Twenties.
Tatort is a long-running German/Austrian/Swiss, crime television series set in various parts of these countries. The show is broadcast on the channels of ARD in Germany, ORF in Austria and SF1 in Switzerland.