"The Grandfather African" is a book about the convicted Czech criminal Radovan Krejčíř. The action takes place in South Africa, to where Krejčíř fled in 2007 to avoid being jailed in the Czech Republic for a billion-crown fraud and conspiracy to commit murder. The book is written in a journalistic style and based on real events. It was the basis for the film "Gangster KA: African." Krejčíř had become a major boss in the South African underworld. In February 2016 he was sentenced to 35 years in prison there.

The book thoroughly maps out the investigation into Krejčíř's illegal activities. In South Africa, already a dozen people in his circles have died. Whether with a single shot to the head or their bodies riddled with bullets, many of his friends – not to mention his main rivals and business associates in money laundering or drug trafficking – have died violent deaths.

Before establishing his drug business in South Africa, Krejčíř did away with his main competitors. The most serious among them was Cyril Beeka, the crime boss of Cape Town. Beeka was assassinated – shot down on the street hit-and-run style. In South Africa the prominent German businessman Uwe Gemballa, who supplied Krejčíř with luxury cars, also met a grisly end. Six months after he disappeared, Gemballa's corpse was found in a shallow grave in the bush, near Pretoria. Assassins also dispatched of Lolly Jackson, who owned lucrative strip clubs throughout South Africa, and did real estate deals and made other investments with Krejčíř. His next associate to be shot dead in the street was Bassam Issa, a Lebanese national known as "Cripple Sam", who had invested in Krejčíř's pawn shops and wanted to be paid back.