- But we're not doing anything wrong.
- Certainly not.

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

You can hear this line at 01:21:25 in the Blu-ray version of the movie.

Quote context

[...]

- What time you get up in the morning?

- About 8:00, I guess.

- I'll fix your breakfast before I leave.

- Now, wait a minute. Suppose someone sees you leaving the apartment at 8:00 in the morning?

- There are a lot of people in this building. Just one person has to see you, and we're dead.

- All right then. I could get up at 6:00 and sneak upstairs.

- Sneak! That's even worse. Suppose someone sees you sneaking out of here at 6:00 in the morning?

- But we're not doing anything wrong.

- Certainly not.

- But there's such a thing as society, you know - laws, rules. I don't mean I necessarily believe in them, but after all, no man's an island.

(Doorbell Buzzing)

- Who is it?

- It's me. Mr. Kruhulik.

- What is it, Mr. Kruhulik?

[...]