She knocked her husband off! Everyone knows that!
5 seconds sound clip from the After the Thin Man (1936) movie soundboard.
You can hear this line at 01:39:16 in the DVD version of the movie.
Quote context
[...]
- Say, what do you think I do? Go around stuffing them under doors?
- He's trying to hang this murder on us to protect his family.
- If the janitor didn't think everything was on the up-and-up, why don't he call the cops?
- Because it's a family affair!
- She knocked her husband off! Everyone knows that!
- Oh, yes, you did. Then you got that lug to throw away your gun.
- You knew your husband and Polly were friends, didn't you?
- No.
- But you knew there was a woman.
- Yes.
[...]