MY FORBIDDEN PAST does not full its punches. It is a full-blooded melodrama set in a time and place where social distinctions matter. Barbara Beaurevel (Ava Gardner) and her cousin Paul (Melvyn Douglas) live in comfortable gentility with Aunt Eula (Lucile Watson). They believe in the kind of social niceties that dictate one's choice of marriage partner, as well as one's future life; those who fail to make the grade are abruptly rebuffed. Hence when Barbara falls in love with industrious yet self-made researcher Mark Lucas (Robert Mitchum), trouble is bound to occur. Robert Stevenson's film boils up to a satisfying courtroom climax in which an inevitable deus ex machina allows a happy ending to take place.
Despite the fact that the film remains relentlessly studio-bound (with only a few second unit shots denoting time and place), it makes a creditable effort of portraying a world riddled with hypocrisies, where Lucas is treated with as much disdain as the African American servant (Clarence Muse) working for the Beaurevel family. Douglas makes an eminently hissable villain with his thin pencil mustache and courtly manners, that do not prevent him from making a pass at Lucas' wife (Janis Carter) in a self-interested act of revenge for Lucas' falling in love with Barbara. Mitchum looks uncomfortable in the cloistered surroundings of a research laboratory, but becomes a formidable adversary for Douglas. Gardner doesn't have much to do, except proclaim her love for Lucas in a series of close-ups; this task she accomplishes competently. Given the constraints of her background, we cannot help but sympathize with her as she tries to escape through love.