This is a well-crafted "love triangle" movie in the visual style of film noir, but without the plot development typical of film noir. No murders, gangsters, or cops. The cinematography is excellent and Preminger shows his mastery as a director, eliciting stellar performances from Joan Crawford, Dana Andrews, and Henry Fonda.
Crawford in particular shows her star quality with superbly nuanced articulation and facial expressions. Her opening lines are amazing to listen to, her voice quavering nervously to show that she is under tremendous emotional pressure.
Dana Andrews gives probably the best performance of his career as the cheating husband who really wants to make things work, but is torn between his neurotic wife, his adorable kids, and his mistress.
Henry Fonda gives a brilliantly understated characterization of an eccentric war-torn hero hiding behind a veneer of gentleness and innocence, who cleverly but compassionately manipulates the situation in order to bring about a satisfactory resolution.
There a few plot twists and a happy ending. Highly recommended.