The film revolves around Dr. Ben Makina who appeared on vacation with his wife and son in Morocco. Things seem still to be mysterious as a stranger appears during their journey and life, while it appears that they accidentally stumbled into an assassination plot and the conspirators are mysterious and dangerous.
While drawing the footage out a bit long, he still keeps suspense working at all times and gets strong performances from the two stars and other cast members.
This version lacks some of the economy of the first, and, unusually for Hitchcock, it sags in the middle. Fortunately, there's a marked improvement as it reaches the last third.
Far superior to the 1934 version, The Man Who Knew Too Much, underestimated at its 1956 release, should be considered as one of Hitchcock's masterpieces.
