The director of an elite boarding school is set on fire in his own bed and dies. Haller investigates covertly as the new music teacher.

As an undercover investigator, Alexander Haller takes on an unusual criminal case: the director of an elite boarding school in Vienna has been set on fire in his own bed. In order to find the murderer, Inspector Laura Janda infiltrates her blind ex-boss as a music teacher. When he meets his attractive colleague Lotta Behrbach, Alex is surprised by his feelings. For the first time since the death of his partner, he feels something for a woman again. In order not to endanger his work, he has to keep his secret from Lotta. Alexander's intuition tells him that the perpetrator knows the school exactly. However, there are no leads and there are no suspects without an alibi. There is also no clue as to the motive, as the murdered man was a popular boss and an excellent mediator in the highly sensitive area of the elite school. This is exactly what makes Alexander's assistant Niko suspicious: he suspects dark sides, especially among the "super correct". And in fact it soon becomes clear that the highly respected director had his secrets.—ADR Das Erste