The home invasion continues, and James and Kristen continue to work against each other and misuse any technology they come into contact with that could possibly help them. Bertino's grim, helter-skelter-styled, 1970's-toned, stalking-slashers-treating-you-bad "because you were home" directorial and writing debut relies on the usual dodges--unwise separation, getting yourself hurt when you can least afford to, and mistaken identity--but through his "uneasy" camera, use of music and loud, incessant, irritating noises, and the movement of his three masked intruders inside and outside the home, builds the terror and suspense. Roger Ebert would have given Bertino one star but upped it to one and a half when he found out this was Bertino's directorial debut. I'll go one better and say he's earned two stars for mixing tried and true formulas into an effective thriller. The Strangers will make you double-check your door at night and sleep just a bit more uneasily, even with the lights on--and keep your cell phone charged and close by at all times.