Three short story omnibus. The main hero and connecting link is Lieutenant Boruvka, created by Lubomír Lipsky. He deals with the murder case between climbers, the death of the dancer in the music theater and the strange disappearance of the mathematics professor.
The Karpísek married couple, both doctors, are leaving for London for two months on business. They entrust their five-year old son Jozánek to the care of their neighbor, Mrs Pokorná.
Spring 1943: A three-member group of resistance fighters flies from a Soviet military airport into the Protectorate of Bohemia and Moravia to establish contacts with an illegal communist center in the occupied territory.
