The fate of cellist Helga Venske (Emanuela von Frankenberg) touches the entire staff. Helga Venske is admitted to the Sachsenklinik after a traffic accident. It is more by chance that the doctors discover a tumour in her that is already disturbing her hearing and sense of balance. Since the cancer may be genetic, Dr. Heilmann (Thomas Rühmann) also has to examine Helga’s son Mirco (Max Riemelt). Fearing never to meet his father, he asks his mother to reveal his identity. Mirco finds him in Berlin. But Michael Dietrich (Ulrich Wiggers) is different than Mirco imagines him: Not a career-loving egoist, but a person with a heart. Mirco persuades him to come to Leipzig to talk to his mother.