The "unguarded moment" seems to come from the forties ,when the Freudian movie was so trendy: "secret beyond the door" "cat people" " "spiral staircase" "the dark mirror" ,the list is endless.
Unfortunately it's marred by a providential love story between the teacher and the cop.Had it focused on the father/son relationship,the movie could have renewed the genre.The character of the father is by far the most interesting of the screenplay: he must have failed professionally as well as sexually in his own life and he wants his whizz kid (a young John Saxon) to be all that he could not be .If he disappoints him,he will break him!Esther Williams is an attractive teacher ,but to be interesting ,such a character needed to show some ambiguousness.After the first thirty minutes ,there's no real surprise.
Watch it for Edward Andrews' offbeat performance.