Deanna Durbin's career was clearly on the downswing when she starred in For the Love of Mary. Durbin plays a switchboard operator at the White House, whose hiccuping spells throw several incoming special-interest callers into a tizzy. The President himself cures Durbin of her hiccups, thereby becoming entangled with the girl's various romances. She, in turn, finds herself neck-deep in numerous political intrigues. A forgettable comedy with disposable songs, For the Love of Mary turned out to be Deanna Durbin's last picture. The onetime mortgage-lifter of Universal Pictures was tired of the Hollywood grind and of fighting a losing battle with her fluctuating weight; thus she retired to France with her director-husband Charles David.