Tabloid journalist Ramona Landau is found murdered in the editorial office of the "Essener Abendkurier." There are a number of suspects, but there is no trace of the murder weapon. During the investigation, it turns out that the location where the body was found was apparently not the scene of the crime. In addition to the complicated case, Mick also has to deal with Tanja: she is relying on acquaintances from the internet in her search for a partner – too dangerous, Mick thinks.

When kindergarten teacher Felix suddenly falls dead from his bike on his way home from work, Mick and Andreas know that something is wrong. They are convinced that it is murder when a high dose of painkillers is found in Felix's thermos flask. During their investigation at the "Ronald Reagan" daycare center, which is run by a German-American couple, they discover that there are some irregularities there. Did Felix want to draw attention to this?