Though the plot of "The Saint in London" does lack the elements of a true mystery, the players find the right sense of whimsy needed for this sort of light caper movie. The interplay between Sanders as Simon Templar and Sally Gray as his new-found female helper reminds me a little of the wonderful back-and-forth between John Steed and Emma Peel in the original Avengers series. This movie won't keep you on the edge of your seat, but it might cause you to sit back in the chair and just enjoy yourself for a while.