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.
Virus alert in Cologne: a deadly influenza pathogen has been released. Shortly afterwards, Sonja Kessler finds her husband Reinhard, a virus researcher, dead in their apartment. Everything points to suicide, but an unusual trail leads her and her stepson Jan to an apartment rented by Reinhard. Reinhard was apparently secretly researching a deadly virus there.
Based on the bestselling biography: Entertainer Horst Lichter has barely had time to relax on his holiday when his mother calls him. In her own dry way, she tells him that she has been diagnosed with cancer and that things are not going well for her. Immediately Horst returns to his hometown with his wife Nada. Returning home brings back childhood memories - of a loving father and a mother who held the reins firmly in difficult situations. Horst tries his best to support his mother Margret - he organises doctor's appointments and tries to provide a little variety into her daily life, even though the relationship between mother and son has been strained for a long time: he counters his mother's edgy, frosty manner as he had learned to do when he was young. He emphasises the positive side of any situation and is always ready to respond with a snappy retort. When Margret learns how serious her illness really is, Horst begins to rethink his own life as well.
