Based on the crimes of Olga Hepnarová who on July 10, 1973, drove a rented truck into a group of about 25 people waiting for a tram in Prague, Czechoslovakia, all aged between 60 to 79, killing 8 of them. Before the murder, she sent a letter to two newspapers explaining her action as revenge for all the hatred against her by her family and the world.
She was found to be sane and sentenced to death. The execution took place on March 12, 1975 in the Pankrác Prison in Prague. She was the last woman executed in Czechoslovakia.