In this low-budget thriller, Peter Lorre plays Janos Szabo, an immigrant from Hungary who is a skilled craftsman. After he's caught in a fire, his face is horribly scarred; his terrifying appearance makes it impossible for him to get a job. With nowhere else to turn, Janos begins working for the criminal underworld. Janos begins having second thoughts about his life of crime when he falls in love.

Janos Szabo immigré hongrois qui a eu le visage brûlé par un incendie porte un masque et commets d'horribles crimes. Il tombe amoureux bientôt d'une fille aveugle, qui est accidentellement tuée

Janos Szabo, un oscuro inmigrante húngaro usa una máscara porque su rostro ha quedado desfigurado por terribles quemaduras. En tal circunstancia, le resulta imposible conseguir un trabajo. Solo y desamparado, poco a poco se irá hundiendo en el mundo del hampa, del cual únicamente lo podrá sacar el amor que siente por una joven ciega.