It is a little bit surprising that such a "forgotten" film attracts such quality reviews here on Amazon. But the fact is this DVD deserves a wide audience. It's a good story. Good photography, clear B/W picture and sound (4.3 ratio - More below on that). A good cast of reliable actors led by Barbara Shelley (looking wonderful as usual), Andre Morell, and Vanda Godsell and many others. The cat is good too. I am not usually a fan of "Extras", but Final Cut give us a very illuminating doc on the background and history that I found most interesting, even tho some of it is covered in the many books on "Hammer". "FilmboyChris" makes a point about the ratio...4.3 always puzzles me. It just doesnt seem to reflect my memory of cinema showings of "standard" ratio films, and in the documentary there are clips from the film in a slightly larger, more realistic ratio. I would honestly love someone ("Filmboy"?) to explain all the different ratios and why they vary so much. I digress. A fine example of early(ish) British horror circa 1961. Highly recomened for fans of said films.