They made a mistake and took the wrong bag.
5 seconds sound clip from the Harlem Nights movie soundboard.
You can hear this line at 01:44:51 in the DVD version of the movie.
Quote context
[...]
- No, it's gonna be OK. You see, the two cops who took the money, they was Cantone's guys.
- They made a mistake and took the wrong bag.
- You gave a million dollars of my money to a couple of cops for a bag of heroin?
- What are you, a fucking moron?
- Yes.
- This isn't heroin. It's sugar.
- That son of a bitch. That goddamn son of a bitch.
- There's no answer, boss. He must not be in.
[...]