Metaphysical horror movie. Grudge was the beginning of a great franchise, from which many more films were inspired. Like franschise Rings, Grudge relies on Japanese films (Ju-on, 2000) and with its unique concept and style, they are a distinct kind of horror films in themselves. So according to tradition, if a violent death occurs, then the wrath of the victim will fall on the scene as a curse that will haunt everything in that area. The film is quite well-written, with very good effects, intensity and suspense from start to finish and does not get boring at all. The script, the directing, but also the actors were all excellent and are definitely among the most classic films in the genre, but also a reference film. Definitely in the top recommended horror movies.