I can’t explain much without giving the coolest parts of the film away – because things get real weird about a third of the way in. But I’ll try. In fact, I’ll use Wikipedia’s explanation: “In the Spanish countryside, a middle-aged man named Héctor and his wife live in a home that they are renovating. Héctor looks at the forest behind their house with binoculars, when he sees someone who turns out to be a young woman undressing. His wife leaves to go shopping so he investigates, only to be stabbed and chased by a mysterious man wearing pink bandages on his face. After fleeing and breaking into a mysterious building, Héctor is contacted by a scientist who warns him of the bandaged man and guides him to his location, promising safety. The scientist convinces Héctor to hide from the bandaged man in a large mechanical device. However, when he leaves the machine, he discovers that he has traveled several hours back in time.”
Whoa, whoa, whoa, I better stop there. That’s already giving far too much away. But seriously, the dude with the bloody bandages on his face is awesome. This movie blew my mind, and despite using hyperbole often, I really mean it. My brain hurt a little after watching this. It’s pretty incredible.