I’m pretty sure this character is played by James Coburn, although I could be wrong. He visits a young masseur to try to get information from him, tells him he’s been recommended because he’s got good hands. The masseur doesn’t like the questions and digs into a leg nerve. Main character hits the masseur afterwards to get even.
“The Carey Treatment” (1972)?
I found this trailer on YouTube. I think the scene of Coburn hitting the masseur starts at a minute into it.
https://youtu.be/KbfFb6-3s5w
Brilliant, sir. And they’re about to release the Blu-ray.
Thank you. It was the one, wasn’t it?
Sounds good enough for a “Solved.”