There's a white female, teenager I believe, and she's dancing in a dark club. She's surrounded by people and I'm pretty sure she's on drugs. It's a slow motion scene where she's just completely out of it, kind of like it's her escape. She has her arms above her head when she's dancing and she's dancing alone. There's this boy, teenager, that is trying to get her attention to help solve his murder but I think it ends up being that he's just in a coma but I'm not sure.

The Invisible (2007) (http://www.imdb.com/title/tt0435670/)