Oh, it represents Gustav Maraheim - you remember, the Mad Lover of Leipzig - terrorizing one of his victims.

8 seconds sound clip from the The Seven Year Itch (1952) movie soundboard.

You can hear this line at 01:00:47 in the Blu-ray version of the movie.

Quote context

[...]

- Yes. It's a wonderful book, Doctor. Very important. It has something in it for everyone.

- I think so.

- Now, really, Doctor, you'll be happy to know that we're giving it a big promotion, the full treatment.

- Two months from today, you'll be seeing this cover in every drugstore in America.

- 'Of Sex and Violence?

- Well, we had to soup up the title a little.

- And what, may I ask, sir, is this supposed to represent?

- Oh, it represents Gustav Maraheim - you remember, the Mad Lover of Leipzig - terrorizing one of his victims.

- Isn't that just sensational?

- May I remind you, sir, that Gustav Maraheim was a very small man with a large red beard?

- Doctor, you're quibbling.

- Nobody knows that.

- They know it in Leipzig.

[...]