At least this film has some terrific desert scenery, especially at the beginning and at the end. But the spectacular New Mexico vistas are not nearly enough to overcome a garbled storyline about a good-guy cop named Ray Dolezal (Willem Dafoe) who investigates the death of a man clutching a suitcase full of loot. Implausibly, Dolezal then assumes the identity of the dead man, to track down the villain or villains. The plot contains several potential villains, but their real identities and their various motivations are terribly confusing. About halfway into the film, I gave up trying to figure out who was doing what to whom. None of the characters are especially interesting.
The story also suffers from various standard film clichés: tough guys who talk tough, characters who spend a lot of time pointing guns at each other; the obligatory nude shower scene, a gory autopsy, and so on. Another big problem here is the casting of Willem Dafoe. With his heavy-duty Northern accent, he is not at all convincing as a redneck sheriff.
Lacking thematic depth or significant originality, "White Sands" is just another film about some cop who tries to solve a crime alone, and in the process encounters assorted characters and risks. The only thing that made the movie halfway interesting to me was the expansive New Mexico landscape.