The House That Dripped Blood (1971)
Summary: An anthology of four horror stories with a wraparound revolving around the disappearing occupants of a mysterious rental house in the U.K.
Bloch: “Milton Subotsky had been supplied with a dozen or more volumes of my short stories. When a film is in the offing, either I suggest certain of those stories to him for consideration or he makes choices of his own. Once we agree on the stories to be used, he sends me a short synopsis of a “frame” story: I then make my ideas known about changes or additions to it, and when we are mutually satisfied, I write a screenplay.”—The Robert Bloch Companion
Category: Motion Picture
Script: An original screenplay written by Bloch; the tales adapted by Bloch from his short stories of the same name.
IMDB page: The House That Dripped Blood