Vlastimil Vondruška: Dagger with a snake

The introductory volume of a series of historical detective novels about Oldřich of Chlum and his squire Ota. The story takes place in the middle of the 13th century during the reign of Czech King Přemysl II. Otakara. The administrator of Bezděz solves the case of the murder of the lord of Grabštejn Castle and the mysterious murder in the Johannine commandery in Dub. Dramatisation based on Vlastimil Vondruška's novel of the same name, The Dagger with the Snake, interpreted by actors Radovan Lukavský, Otakar Brousek st. and Martin Polách.