During the first 5 minutes of the film, Verity (played by Rue McClanahan) attends a funeral. She kisses the deceased who is lying in an open casket and leaves a red lipstick mark on his face. The mortician's female assistant is immediately instructed to remove the mark. When she does, the deceased's face visibly flinches as the stain is rubbed off his face with a tissue.
After Verity is struck with the first blow, we see her lying face up on the tiled floor. Mr. Prince then strikes her again with a mighty blow that would inevitably have had to move the body at least minimally. Yet the next shot of Verity is precisely the one we just saw, with the body positioned in the identical spot on the floor tiles and the angles of her body and head not having moved a millimeter.