- Well, you just keep your doors and windows locked, and you'll be safe. Do you understand?
- Thank a lot. We will.

7 seconds sound clip from the Black Christmas (1974) movie soundboard.

You can hear this line at 01:15:03 in the Blu-ray version of the movie.

Quote context

[...]

- Sorry, miss, but you do know there was a girl killed in the park tonight?

- Yes, we heard.

- Well, we're just helping the police to look for the killer.

- Well, we'd ask you in, you know...

- But our dog died last night.

- Oh, wow. Well... well, we don't want to bother you at a time like that.

- We were just wondering if you noticed anything suspicious here tonight?

- Oh, no. Sorry.

- Well, you just keep your doors and windows locked, and you'll be safe. Do you understand?

- Thank a lot. We will.

- And remember, there might be others from the search party around. So, don't be afraid. We'll be around seeing that you're safe.

- Remember to lock those doors and windows, now. Okay, then. Bye now.

- I'd rather face the killer!

- Seriously, do you realize this is the only door and window in this whole house that's locked?

[...]