The Monthly Film Bulletin wrote: "Unconvincing excursion into the macabre, which is consistently disagreeable but never in the least alarming."
Boxoffice wrote: "Set in a twilight world of demons, this thriller in
DeLuxe Color has an eerie mood to please the chill seekers as it depicts the adventures of visitors in a small town in Brittany who stumble, unwittingly, into the hands of devil worshippers. Since so much has been written in recent years on the subject, we can assume that producer Tom Blakely had technical authority for the impressive ceremonial rooms where black magic rites are performed. ... Running as the second half of a dual bill with
Curse of the Fly, this is well produced of its kind." In
The Radio Times Guide to Films Alan Jones gave the film 1/5 stars, writing: "The first British vampire movie to use a contemporary setting finds undead Hubert Noel posing as an artist in Brittany ... Little sense of terror, or even atmosphere, is raised in this undistinguished, stilted dud." In
Sixties British Cinema Robert Murphy called the film "undeniably shoddy, its mixture of Celtic vampirism and smart-set witchcraft unconvincing. But the film's hero is played by the ever-reliable William Sylvester, and there is some satisfaction to be derived from the way in which the most boring characters are killed off by an avenging bat. Critic
Leonard Maltin awarded the film two out of four stars, calling it "intelligent, with great use of color, but flat, slow, and ultimately trivial."
Leslie Halliwell said: "Mainly tatty shocker with a few lively scenes." ==Home media==