When a horror film based on the same source material as Suspiria and Inferno goes into production, the evil witch the story is based upon manifests herself and not only begins to terrorise the actress set to portray her on screen, but reveals plans to wreck havoc and bloodshed throughout the world.

Townspeople of a small English village begin to die in a series of horrible accidents, and a Scotland Yard inspector arrives to investigate a mysterious local medium who records conversations with the dead.

A mentally unbalanced man is obsessed with the idea that a black cat is possessed. He tortures and kills it. Later, he comes to believe that the cat has returned from the dead to kill him.

Greedy heirs wait in a mansion for a rich cat lover to die, only to learn her cats come first.

After a road accident in Hungary, the American honeymooners Joan and Peter and the enigmatic Dr. Werdegast find refuge in the house of the famed architect Hjalmar Poelzig, who shares a dark past with the doctor.