Must have been... It must have been a short circuit.
5 seconds sound clip from Batman (1966) - The Entrancing Dr. Cassandra (S3E25) TV Series.
You can hear this line at 00:14:30 in the Blu-ray version of the movie.
Quote context
[...]
- While at Gotham State Prison, Dr. Cassandra is up to some special delivery of her own.
- What's going on here, captain?
- All the electric eye alarms went off like somebody walked through and my men never saw a thing.
- Are the prisoners in their cells?
- Like the day they were brought in.
- What about the special arch-criminal wing?
- Must have been... It must have been a short circuit.
- Ha, ha. Guess again, square ball.
- Who are you? How did you get in here? Get out.
- My name is Dr. Cassandra, I walked through the front door and I'm not walking out.
- Keep them covered with this.
- While I speak to my friends.
[...]