this be a really dark movie . noir indeed . the title character be smallpox and bring into new york city unknowingly by evelyn keyes . she be on one mission when she arrive and on a rougher one after she speak to her no longer innocent sister . but she herself be not intentionally a killer . this doesn not mean she doesn not kill . it doesn not mean her presence somewhere among eight million other people doesn not throw the city into turmoil . keyes be excellent . the support cast be very good too . there be several little known people involve in this the director include . don not be put off . it be a movie to be reckon with . ( and how nice to see a columbia picture . columbia and republic turn out wonderful comedy and noirs while yet we hardly ever see them anymore . ) .