Mark Gatiss has made an encyclopaedic study of the history of horror, then created many gems that only enhance the genre. This beauty is almost familiar to anyone who has read MR James (naturally, extensively) yet is still original, if somewhat easily guessed. That doesn't stop the 3 stories being delicious, especially the last. He takes the familiar structure and adds his delightfully dark imagination to offer new tales that are a delight to lovers of the best horror, which doesn't rely on gore, just a dark imagination. As he's a highly intelligent and hugely talented writer and actor I believe him to be a national treasure. He will always be the natural Mycroft to this Holmes devotee, and that is the highest praise I could offer. British film needs far more of his creativity.