Having seen only one movie before featuring Edward G. Robinson in the cast (Soylent Green), this was highly entertaining. His expressions, manerisms and line delivery as mobster Jonny Rocco, just terrific acting and he walks away with every scene he's in. It also boasts a great set-up of the character. That scene where he whispers in Bacall's ear, tells you everything you need to know about what a dirty little scumbag that guy is. The movie takes place only on a few locations but makes great use of the limited space, presenting a tightly knit story about a group of people, some more dangerous than others, who come together in a hotel during a hurricane. Besides Robinson, the rest of the main ensemble also performs great.
Still blessed with many gaps regarding films from before 1960, this was completely enjoyable.