If it weren't for the plot synopsis, which should have been labeled with a spoiler alert, I'd have had no idea what was happening. This is one of those rare films that should have been longer, so it could drop some clues about wtf was going on. Or, drop/shorten some of the MANY nightclub scenes. But, it's obviously one of those quota films 1950s studios had to do.
Review of Doorway to Suspicion
