An experienced Austro-Hungarian criminologist is assigned to investigate a series of murders around Prague and its surrounding suburbs.

The body of a young boy is discovered in a pond oin the outskirts of Greater Prague. The harrowing case has sexual connotations that Inspector Budik must untangle.

A robbery goes terribly wrong and ends up with the murder of a man. The motives seem to be hidden in a religious book found near the body.

Amidst the family problems for Inspector Budik, he faces the case of a woman strangled. The case seems to be connected with blackmail.

A war hero is murdered. Inspector Budik, investigates the crime that seems to be motivated by betrayal. When the killer is identified, he decides to take a prisoner to avoid capture.

As the clothes of a woman are found in the riverbank, Inspector Budik wonders if this is a case of suicide or murder.