It's well performed with actors who would go onto greater things. The plot is pretty thin, insomuch as it has one. The most interesting and fascinating elements come through post viewing reflection, to consider what you would have done under these circumstances. The director is asking you to accept and believe the events that took place are plausible - are they? Or are they so implausible that the story becomes fantasy? If it's fantasy it's valueless, passing ninety minutes of your time and soon to be forgotten. If you can connect on a real world level then maybe you'll learn something about yourself you didn't know already - or at least choose to seldom acknowledge. Cinema is there to make you think and connect with the world in a different way and this film does just that for the most part.