"Liebeslied" is a musical about a serious topic, a medical record featuring singing and dance: Dinah and Roger are living a modest, but happy life with their two children. While she works at the check-out of a supermarket, he is often away on his job as a construction worker. One day, Roger feels a tremor that nearly leads to an accident at the construction site. Soon he finds out that he suffers from Parkinson disease. At first, he tries to ignore his incurable condition but he fears for his relationship with Dinah who really loves to dance. And Dinah also starts to suspect a secret behind her husband’s unemployment. Thus, they start on the difficult path to cope with the new situation of their relationship.