How was the first 45 minutes unnecessary? It sets up the entire film by giving you a look at the various characters and then turns it on its head by having the toughest amongst them being the first to lose his courage.

Great film, amazing suspense and perfect performances.

One of the best thrillers I've ever seen. The first 45 minutes are a bit slow, but it's meant as an introduction of the characters. After that the film kicks off and the suspense builds up continuously. There were moments in this film that had me gasping for air, it was that tense. The acting is very good and you can really feel the fear of the characters. This is definitely 'the best movie Hitchcock never made'.

Wow, what a submersive film, almost as if we were actually along for the ride with the characters. My heart was literally pounding during some scenes.