"My little friend Indigo is deaf and dumb, he cannot hear and he cannot speak, but reads the lips. And I will advise y…"

"There is an air of inquiry about you that immediately offends my deepest nature! Something suggesting Scotland Yard, …"

"Has no one arranged to silence you yet, Mr. Lee? What a pity."

"Autopsy Surgeon: She was a very beautiful girl. One hates to perform an autopsy on a beautiful girl."

"Terry Lee: Pardon me, Professor, but didn't I just see you outside baying at the moon?"

"Dr. Joseph Van Ee: So it is you, Leonide. I was warned you might appear, like one of you own illusions out of nowhere."

"Bill Raymond: There were screams inside! You gotta admit that it's in the longitude of my profession to make with an …"

"A thrilling mystery of a supernatural killer!"

"Bela Lugosi — Prof. Leonide"

"George Zucco — Dr. Joseph Van Ee"