Professor T.: Season 4 - 4 Episode s
4x1 - The Witness
May 15, 2020
Professor T returns to Cologne to help Daniel track down a killer.
4x2 - Mother
May 22, 2020
Professor T's latest case coincides with his wish to resume a normal life.
4x3 - Mathilde Möhring
May 29, 2020
Professor T investigates a gossip columnist's murder.
4x4 - Christina
June 5, 2020
Professor T attempts to solve a crime close to home.