I'm going with you.
3 seconds sound clip from the Island of Lost Souls (1932) movie soundboard.
You can hear this line at 01:00:39 in the Blu-ray version of the movie.
Quote context
[...]
- I want you to follow him and put your hands around his throat until...
- The Law.
- Thanks. You must have a pretty good reason for helping us.
- I have.
(Beast men screeching, whimpering)
[...]