This incoherent thriller has a story which surrounds an architect whose wife is murdered, meaning he is the chief suspect. Its seriously forgettable stuff with little in the way of energy or imagination. It was in fact an early release from b-movie distributers Crown International Pictures but this one was from a period before they started to get any good at this game. It is a very sub-par and tedious production indeed, which seemingly was based on a novel by Winston Graham, who wrote the very good Marnie which of course was adapted by Alfred Hitchcock into an equally excellent movie. Needless to say, Carnival of Crime isn't even in the same ball-park. It's only plus points truthfully come from its exotic Brazil location work.