As this episode opens Roman Eggers goes to the home of his ex-wife and children for the first time in six months but is not welcome. He then returns to the flat he has been living in; here he is seen by another woman; she clings to him despite his protestations. He then hits her with a blunt object and she dies... Borowski and Brandt are soon on the case. Initially they don't know the identity of the woman and although there are some finger prints at the scene they aren't on record. They disagree about possible motives. As the episode proceeds there is another murder, linked by fingerprint evidence.
This is a fairly downbeat episode; the killer is fairly normal, albeit with obvious anger issues, and the murders are fairly brutal. They also have a realistic feel; so no inventive murder methods or convoluted motives. There is also a strained working relationship between Borowski and Brandt; this isn't helped by the fact that he appears to be drinking rather a lot and she has recently changed her medication. While this may make the story more 'gritty' it isn't as much fun as when they get on better. Eggers might not be a very nice person, even before we see him commit murder, he isn't totally unsympathetic. The cast, both regulars and guest stars, do a solid job. Overall a solid story.
These comments are based on watching the episode in German with English subtitles.