I apologize for having the same obvious review title as several others, but I just couldn't help myself. This is only the least of the Thin Man movies if you have seen all of the others, especially the energetic precode that started it all. If this was the only Thin Man film you ever saw, you'd think it a superior mystery of its era with great leads.
It is 1947, Nick is obviously in middle age, Nora is on the edge of it, and our dynamic detective duo of the 30's and the war years (they made one film during WWII) are in a brave new postwar world that they do not quite fit into, nor do they understand. Their son is about ten and is getting old enough to defy them, and two young friends, socialite Janet Thayar and her newly wed musician husband Phil Brant come to them for help. They need help because the night before, aboard a shipboard nightclub, band leader Tommy Drake has been murdered, and because Brant and Drake were seen arguing, of course the police jump to conclusions and assume Phil did it.
Now as usual there are many suspects, some that are obvious and some that are not so obvious. However, to solve the crime, Nick has to investigate a world completely foreign to him - that of postwar jazz and the jive talking of the inhabitants of that world that sound like a foreign language to him. Nick hasn't lost a step in his investigation abilities, he's just having some trouble with the changing times.
I don't know if this was meant to be the last of the Thin Man films, or it just happened to be, but it was a perfect ending. Nick and Nora are moving into middle age, it is time for a new generation to take over, symbolized by the newlywed Brants, and the Charles' are ready to wander off into the sunset and deal with their son's upcoming teen years. A perfect ending to a perfect series.
My favorite scene has nothing to do with the crime. It is when the Charles' son has tried to duck out on piano practice and go play ball against their direct orders. Nora says a spanking is in order and hands this task over to Nick who hesitates as he thinks back on his son's birth, the good times, and then one memory of his son being a brat hits him and he is able to complete the task. In this one way Nick and Nora were very postwar - they winced at corporal punishment. This was probably the reason the baby boomers were entitled hippies in their teens and 20s, the most prudish bunch of old people since the pilgrims in middle age, and want the government to keep their hands off of their Medicare now that they are old. But I digress.
At any rate, adieu Nick and Nora, no sleuthing team before or after you were ever your equal in charm, teamwork, insight or just plain fun.
