The film stars Calvin Lockhart, Peter Cushing, Marlene Clark, Charles Gray, Anton Diffring, Ciaran Madden, Tom Chadbon, and Michael Gambon.

Millionaire Tom Newcliffe invites a group of people, along with his wife Caroline, to spend some time in his rural English mansion, where he reveals that one of them is a werewolf and therefore must be killed.

The group is composed of disgraced diplomat Arthur Bennington; Jan and Davina Gilmore, a pianist and his ex-student, now his wife; Paul Foote, an artist recently released from prison; and Professor Lundgren, an archaeologist and a lycanthropy enthusiast.

The entire house is under surveillance by CCTV cameras, as well as motion sensors in the grounds around the mansion set up and overseen by Tom's associate Pavel, who does not believe in werewolves.

Foote denies being the werewolf as the creature continues killing, with the helicopter pilot, diplomat Arthur Bennington, and Caroline's dog all falling victim.

Prof. Lundgren deduces that Caroline must have contracted the werewolf disease while taking care of her dog's wounds due to an open cut on her hand she sustained from a broken wineglass at dinner.

The gimmick is amusing enough and brings a touch of the old-time fairground entertainment into proceedings; sadly, though, the film seems prepared to take its undoubtedly powerful material entirely at this pick-the-beast level, with each of the characters being 'set up' in turn as the guilty party.

The story of an outbreak of animalism among the fatally flawed rich, with its parallel theme of the hunter who is fated to turn hunted ... is surely capable of supporting a much more serious and atmospheric treatment.

"[4] Allmovie wrote, "The non-anthology output of Amicus Productions tended to be hit-and-miss, but The Beast Must Die is an interesting if lightweight horror-mystery hybrid from the studio.

This edition includes the following special features: commentary by director Paul Annett, a "Directing The Beast" featurette, and Amicus Collection trailers.