It's a terrible story.
2 seconds sound clip from the Fiend Without a Face (1958) movie soundboard.
You can hear this line at 00:50:15.912 in the Blu-ray version of the movie.
Quote context
[...]
- If she hadn't rescued me, I wouldn't be alive.
- What were you doing there, Professor?
- I had to examine the mayor's body. I had to find out the truth.
- Professor, what's the matter?
- Shut down your atomic plant, Major.
- Call Dr. Bradley right away. I'm going back to the base.
- Jeff... be careful. I'm afraid.
[...]