A primary school pupil is run over and left lying in a wooded area near Aarau, seriously injured by the offender who escaped. The investigation leads Anna-Maria and Doerig to the rich Tobler family. Luc's undercover research with the psychiatrist Mankovsky turns out to be difficult: he lets himself be absorbed more and more by the professor. Dr. Semmelweis gets family support to analyze Mankovsky's psychological drug. And Fabio's sweetheart already seems to spurn him - Lilly doesn't give their relationship a chance.
