Catastrophe sprouts from tiny choices in Slovak New Wave gem _The Shop on Main Street_. In 1942 a mild carpenter becomes “Aryan controller” of a Jewish widow’s button shop. He tries to stay decent; the regime leans harder. Ida Kaminska lends the widow wary warmth, every twitch caught by the lens. Directors Kadár and Klos favour steady shots, dry wit and the odd dream flicker. No gore, only rising moral torque, ending with a thud that keeps echoing.