A Perfect Getaway (2009)
Plot: Two pairs of lovers (Zahn & Jovovich, Olyphant & Sanchez) on a Hawaiian vacation discover that psychopaths are stalking and murdering tourists on the islands.
This was not much of a horror movie, but it was a very good thriller. There’s a bit mystery, a nice twist, and a satisfying resolution to it all. The film is worth watching just for the incredible shots of Hawaii.