An amazingly sympathetic portrait of a figure historically given very short shrift: the title character is not only a two-timer—he’s a traveling salesman as well. But, as embodied by that perpetually pressured everyman of the 1950s, Edmond O’Brien, the bigamist comes across as a victim of his own sensitivity. Caught between two complementary spouses, O’Brien’s dazed indecisiveness dominates the narrative. As always in Ida Lupino’s directorial...