Beware of Ladies is a lightweight attempt at romantic comedy from the Republic studio mills. Donald Cook, who'd just finished playing Ellery Queen in Republic's Spanish Cape Mystery, is as stalwart and firm-jawed as Mr. Queen in the role of a crusading lawyer. Reporter Judith Allen assigned to cover Cook's bid for the post of District Attorney, falls in love with her subject. Allen's no-good husband, seeking evidence in his divorce suit, snaps a photo of her and Cook in a compromising position. His political hopes in the dumpster, Cook strives to clear Allen's name.