There is a point in every human being when they are lonely. Lisa Brenner knew that moment. When her body is found one gray morning in front of a high-rise building, having fallen from the 12th floor balcony, she leaves behind a number of men who adored and loved her. Lisa was so close and devoted to all of them that in the end nobody knew if he was really her favorite. A tricky case that also deeply shakes the trust between Leitmayr and Batic.

Franz Leitmayr leaves town for Oktoberfest because he can't stand it, but is called back because his fingerprints are on a dead man's wallet. The victim appeared drunk but has almost no blood alcohol level. His GHB level is another story, and shutting down the beer tent where he obtained his tainted alcohol is a problem during Oktoberfest. And the victims continue to pile up.