Is Ellen (Colbert) losing her mind—is she already married? The trouble is what she remembers happening is not what a bunch of other people remember. So what's going on.
About half way through, the movie turns from high-key lighting into noir. But then Ellen's fiancée is the great noir icon Robert Ryan. Except here, he's basically a good guy, although those inventive opening scenes where he can't get into his own wedding prove he's a quirky sort. Colbert gets to show her acting chops by running through about every emotion in the book. And I couldn't help thinking of the previous year's The Snake Pit (1948) as I watched her breakdown.
It's a tense, riveting mystery as we try figuring out what's going on. Ellen seems so convincing, but then so does the damning evidence against her. The screenplay effectively draws the noose ever tighter around Ellen's sanity up till the end. Then the script nosedives with some ridiculous motivation that's just too implausible to fly (without giving it away). Too bad, since the movie could have excelled without this unfortunate lapse.
There's one scene that intrigued me. Hoping to unravel the mystery, Ellen and David enter what looks like a spacious, well-lit livingroom. There, what only can be described as a cutting-edge jazz ensemble is laying out the cool sounds of the time. Draped languorously across a couch is an equally cool-looking blonde. It's a highly suggestive scene, and clearly an effort at creating exotic atmosphere. But, the banal setting and the high-key lighting drain the needed visual impact. It's almost like someone (director Ferrer, the producers?) was afraid of too much "atmosphere", (contrast with the super-evocative jazz scene in the classic DOA {1950}). Thus, a potential highlight is allowed to pass by.
All in all, it's unfortunate that the fine acting, inventive touches, and genuine suspense are challenged by a key lapse in the plausibility of the screenplay. Otherwise it's an effective little thriller.