Upon first viewing, The Strangers was one of only two films I'd seen that actually ever frightened me as an adult (well, a seventeen year-old, but close enough). To be fair, both films I'd seen in the same setting - alone, the middle of the night, in the aptly named "Suicide Flats", and what's more, I've since re-watched The Strangers a couple of times and realised that both my fear, and my enjoyment, were perhaps a bit overstated on that first viewing. Even taking that into account though, and seeing it again almost a decade after that first time, I still honestly believe that The Strangers is a good movie, with some pretty genuinely creepy elements.
Final rating:★★★½ - I really liked it. Would strongly recommend you give it your time.