A small Moravian town near Brno in the 1920s. In a forest clearing, the mentally disabled Fricek discovers three dead young people: the nineteen-year-old daughter of the local forest ranger Růžena, the butcher's assistant Hrnčíř, and the former student Roubal. Thus begins a detective story that screenwriter Roman Ráž wrote based on a true story. Inspector Vrba is in charge of investigating the case.

Jiří Kodet
as inspektor Vrba

Veronika Žilková
as Ilona, Vrbova dcera

Jaromír Dulava
as Karel Roubal

Tomáš Valík
as řeznický pomocník Josef Hrnčíř

Lenka Loubalová
as Růžena, dcera Nitrových

Karel Augusta
as velkouzenář Nitra

Ludmila Slancová
as Nitrová

Svatava Válová
as Heda

Hana Houbová
as Hedina matka

Otakar Dadák
as Roubalův strýc