... and in fact only the last thirty minutes or so has much suspense or tension.
Commander Charles Sturm (Charles Laughton) of the U. S. Navy is well liked by his men and their wives. However, his own wife Diana (Tallulah Bankhead) is not well liked. She appears snooty and glum. In fact she is just a very sad person because her husband is insanely jealous without cause and even violent sometimes. In fact he has been to a doctor and is just plain insane and delusional, and this has killed what love she had for him. He even has a fellow officer, Lt. Jaekel (Cary Grant) transferred for inefficiency just because he is so sure Jaekel and his wife are involved. His wife even has an impromptu conversation with Jaekel with her husband listening nearby to prove it's not true but he remains unconvinced.
So Diana takes a walk through the North African town in which they are stationed, meets a stranger, and gets romantically involved with that stranger. What she doesn't know is that the man is her husband's new second in command to replace the one he transferred, Lt. Sempter (Gary Cooper). So Sturm's old jealousies begin to rise up again, except for once he is right. And a submarine is a terrible place in which to play out a love triangle. Complications ensue.
This is noteworthy for the once-in-a-lifetime cast. Laughton gets an "introducing" credit as being that "noted British character actor". Laughton goes big and florid with his performance, Cooper gives his normal "aw shucks" performance, and Bankhead plays it quiet and sullen. Bankhead is best when she's the one handing out the withering one-liners, so the film may have worked better with a more conventional and vulnerable leading lady.
