The last problem

A snowed-in vacation hotel. A corpse in a room locked from the inside. The hotel manager wants to cover it up, but in no time the whole hotel knows about it. Among the guests is an inspector - at least that's what he credibly claims - who starts an extensive investigation with his assistant who has traveled with him. Then a second murder takes place. Although the inspector seems to be getting closer to solving the case, the evidence is lacking. Then the village policewoman arrives on snowshoes and immediately gets into trouble with the arrogant townie.