Peter Lindburg played the role of "Kommissar Kämpfer" in the crime series "Blaulicht" for decades. Now the series is to be canceled, which doesn't sit well with the star who has been spoiled by success. Offended, he returns to his hometown in Thuringia, which he once left for the sake of his career. But even here the TV investigator can't let go of crime: when he believes he has witnessed a murder one evening and strongly suspects the highly respected public prosecutor Dr. Eugen von Wangenheim of the crime, Lindburg causes all kinds of commotion with the local authorities. The press also gets wind of the case.
