Corpses who seem to have risen from their graves infest an isolated piece of countryside and walk among the living again…Shortsighted and prejudiced critics might easily refer to this as another gem that tries to pick in on the success of George A. Romero's classic `Night of the Living Dead'. On top of that, `Let Sleeping Corpses Lie' is an early 70's Spanish/Italian co-production and those movies automatically get categorized as meaningless garbage. But, if you decide to ignore this movie due to these reasons, it's your loss. You'll miss out on one of the most imaginative and clever zombie films ever made! Jorge Grau's modest horror masterpiece is stuffed with ingenious findings, strong plot-twists and adorable black humor. And surprisingly great acting too, as Ray Lovelock (Autopsy) and Christina Galbo (What have you done to Solange) form a lovely horror couple. They're stuck with each other after a silly accident and continue their trip together. Ending up in a quiet little village, they discover that experiments with ultrasonic agriculture methods have disastrous effects on the nerve systems of primitive life forms, causing babies to act homicidal and the dead to live again. The dumb cops, however, have no ears for the warnings and the Inspector considers the couple to be Bonnie and Clyde-like Satanists. `Let Sleeping Corpses Lie' is an excellent horror film with a lot of style and substance. The film contains a lot less nauseating butchering than you might expect but the few sequences in which zombies are devouring their victims are pretty damn gory. The photography is beautiful and you should be prepared for a few impressive shocks that'll hit you like a ten-ton hammer. Highly recommended to all horror fans!