This is probably the least understandable episode of the series. The young male missionary is told that his wife is dead. He demands to be taken to the site of her buried body. He digs up the site and presumably sees her dead body. But then we find out at the end that she was alive after all. Makes no sense! Furthermore, what does the title "Triumph" refer to? Who or what triumphed over who or what? I don't get that either.
Most if not all of Hitchcock's stuff makes religious people out to be hypocrites, so I wasn't really surprised by that, though I think that's worth noting as well.