Abel, Your Brother (originally Polish title: Abel Twoj Brat) features young Filip Lobozinski in the title role. As the new kid in school, the sickly, bespectacled Filip rapidly rises to the top of the unpopularity heap. He hardly endears himself to his classmates by insisting upon correcting them in class and by eating appetizing meals from home while they're stuck with onion sandwiches. Filip's first efforts to befriend school bully Henryk Golebiowski are rebuffed, but he is eventually used by Henryk's gang as a fall guy and go-between for their various forays into thievery. Caught with the goods, Filip is coerced by his mother into confessing to the police, which immediately pins him down as a squealer and earns him several schoolyard pummellings. One day, Filip fails to show up in school, and his classmates learn that he has been hospitalized. As they sit around the park wondering what's wrong, the boys are approached by a sagacious blind beggar, whose fundamental philosophy is that all men (and boys) are brothers. When word comes that Filip has died of meningitis, his former tormentors are truly sorry that they hadn't been nicer to him.
~ Hal Erickson, All Movie Guide