Sure it's from the UK 2000s but can only remember 1 scene.
Sexy youngish blonde women with possibly russian accent, make up and big hoop earring sitting at a bar and a guy comes in (undercover cop) and chats with her. He asks her if she knows the size of a $50 or $100 bill and the weight etc. and then says it's curious how a bag of whatever drugs she's dealing is worth more!
He makes her be quiet by telling her it wouldn't be good for business if a cop was sniffing around. Next she goes to her boyfriend's/f*** buddy's hotel with her daughter where he tells her to leave, he doesn't love her etc. The woman leaves crying and overdoses where she ends up in the hospital. The police go there and blackmail her for her boyfriend's whereabouts or her daughter will be taken from her.