Yeah, and for once I believe you, because it's just rotten enough.
5 seconds sound clip from the Double Indemnity movie soundboard.
You can hear this line at 01:38:24 in the DVD version of the movie.
Quote context
[...]
- He came here first to ask where Lola was. I made him come back. I was working on him.
- He's a crazy sort of guy, quick-tempered.
- And you know what he would've done to her, don't you, Walter?
- Yeah, and for once I believe you, because it's just rotten enough.
- Only you're a little more rotten.
- That's the way you operate, isn't it, baby?
- Suppose it is. Is what you've got cooked up for tonight any better?
- I don't like that music anymore. Mind if I close the window?
[...]