A man isn't going to be satisfied when there's something he suspects about his wife.
6 seconds sound clip from the The Skin Game (1931) movie soundboard.
You can hear this line at 01:12:11 in the Blu-ray version of the movie.
Quote context
[...]
- Oh, I'm not ashamed and repentant and all that.
- If it wasn't for him... I'm afraid he'll never forgive me. It's such a disgrace for him.
- Look here, dada. He simply mustn't find out.
- But he's bound to go on, because he knows there's something.
- A man isn't going to be satisfied when there's something he suspects about his wife.
- Charlie wouldn't never. He's clever, and he's jealous, and he's coming here.
- Couldn't we say something to put him clean off the scent?
- You see, I don't know what I'll do. I've got soft being looked after.
- He does love me. And if he throws me off, I shall go under, that's all.
[...]