One Tree Hill - Season 4 Episode 14 Sad Songs for Dirty Lovers Where nothing ever changed until one outsider changed everything.
Overview: Haley confronts Brooke regarding the stolen calculus test. Lucas and Peyton consider taking their relationship to the next level as Peyton and Brooke grow closer. In Deb's absence, Nathan throws a senior party at the Scott House where a sex tape from Nathan's past surfaces.