"Impulse" is a movie for which I had relatively high expectations: the idea of people losing the ability to control their impulses and totally disregarding all the established social rules sounds very, very intriguing. However, the result we get here is (despite a few unexpected twists) a disappointing and very slow-paced (there is a dialogue-free passage where a man simply walks around for about seven minutes) thriller. George Romero had used basically the same story ten years earlier in "The Crazies" - and he did it much better. (**)