The Uncanny (1977) starring Peter Cushing, Ray Milland, Donald Pleasance, Samatha Eggar
The Uncanny is an anthology movie. Writer Wilbur Gray (Peter Cushing) is an eccentric writer who has written a novel. He’s trying to convince his agent (Ray Milland) to publish his latest, about — cats! He documents his thesis that household cats are intelligent, in control, and murderous when necessary. This serves as the framing device for three horror stories about the murderous cats.