When his mother-in-law dies, New York documentary filmmaker Jeremiah Salinger returns with his wife to her hometown in South Tyrol. The villagers of the remote little town are closed off to the outsider. However, Jeremiah soon hears about a brutal murder that occurred thirty years ago and was never solved. Three young locals had not returned from a hike after a massive thunderstorm, and shortly thereafter, their bodies were found between the steep rock walls of the nearby Bletterbach Gorge – horrifically mutilated. Despite all warnings to stay out of it, Jeremiah begins to ask questions. But soon he regrets his curiosity...