Partisan (2015) on Netflix

Plot summary

Gregori adopted Alexander after spotting the boy's mother, Susanna, on her own at a hospital, and he is now the head of a secluded commune where mothers and children live together. Eleven years later, Alexander carries out killings alongside the other children who were taken in the same fashion. The residents tend livestock and grow vegetables, and Gregori trains the young ones to use earplugs before they fire. He tells them that terrible men fill the world, and that is why the missions are necessary. Susanna is expecting a child and cries when she drops a piece of meat; during a mission Alexander slips away to a grocery store for more, and the owner treats him to chocolate. His friend Leo is hard on himself after a practice killing.