School for Husbands was adapted for the screen from a stage play by Frederick Jackson. Some of the more censorable aspect of the stage original were watered down for the film, but enough double-entendres remain to titilate the fans. Henry Kendall and Romney Brent plays Geoffrey Carter and Morgan Cheswick, a pair of doubting husbands who conspire to test their wives' fidelity. To do this, they both consult young novelist Leonard Drummond (Rex Harrison), a notorious womanizer, clueing him in to the fact that they're both about to go out of town on business. The husbands figure that if their wives can resists the charms of the libidinous Drummond, then they've passed the "test". The upshot of all this finds Marion Carter (Diana Churchill) resorting to some trickery herself to save Diana Cheswick (June Clyde) from throwing her life away on the philandering Drummond-and then concocting a plan to teach the husbands a good lesson.
by Hal Erickson synopsis