You might not think a tennis movie--that is, a movie about a young girl making her way up the tennis ladder to the championships--would go very far. And this is the main focus for the first half of it. But in the background some relationships are developing, and here is the real meat of this B-movie, with its slightly suggestive title.
At the core is a fairly new kind of stereotypical family, the kind broadened in 1950s television from the Donna Reed Show to My Three Sons to the Brady Bunch--a suburban utopia. Husband and wife in this case are politely happy, and the wife, played brilliantly by Claire Trevor, in particular is secretly frustrated. When her daughter begins her rise in the tennis world, and falls in love with the local pretty boy (a nice guy, too), she starts to be jealous, or at least to see what she's been missing in her own life. And then the power man comes along, a mover and shaker in the tennis world who see the daughter's talent and also the mother's hunger and charm.
It can only get interesting from there, and it does.
The tennis scenes are not terrible, but there are too many of them, I think, and we don't totally care who wins the matches. But again, this is backdrop, and as the ball is hit hard and fast, we see the subplots brood and get interesting, within the limits of the code still holding sway for another decade.
This is an Ida Lupino movie. You might not think it matters that a woman directed a fairly formula kind of film, but there are slight tilts to the attitudes that seem only possible by having a woman (and a woman like Lupino) in charge. And the characters who really rise to the most complexity are women, the daughter to some extent limited by her role as a young and naive whiz, but the mother, for sure. Between Trevor and Lupino we have an interaction that comes alive on screen.