Not a bad little horror flick - almost made the 8/10 but not quite. Billed as a potential prequel to the Saw series, this movie demonstrates why with its relentless use of torture like booby traps. The scene is all set up very nicely with a young criminal intent on stealing from the family he is working for, only to find that someone is intruding within the house at the same time. The latter burglar however, is looking to take something far more valuable than a previous gemstone, as he wants the wilting body of one of the households victims. Contrary to a burglars normal emotions, the young (more humane) villain then takes it upon himself to try and save the family from this more psychopathic invader, only to see his efforts in vain as the bodies fall victim to several of the innovative death traps laid about the house. You can really see how this was potentially linked in with the Saw franchise, but not enough focus was on the killing machines mentality for me. Saw is about an intelligent yet deluded mastermind, whereas little is established with regards to the identity of this assailant and he appears to kill for killings sake, and for sport, as opposed to the 'tests' that Jigsaw establishes. I guess it's a tad disappointing that the ending doesn't go as far as to explain who the murderer was, and why he was planning such drastic measures, but I'm always up for a sequel if that's what it was heading towards. This was much better than I had predicted, and is staking a claim to be one of the more credible horrors of late, yet I do feel it was a good decision to keep it separate from the Saw franchise, as it is missing a touch of intellectual class that those movies add.