It was all in your mind.
4 seconds sound clip from the Phantasm (1979) movie soundboard.
You can hear this line at 00:15:03 in the Blu-ray version of the movie.
Quote context
[...]
- It was simply reflection. Fear is the killer. That's what grandmother wants you to learn.
- Come and visit us again soon.
- I'm just a-sittin' here at midnight and I'll be sitting here 'til noon.
[...]