Shagging(2001)

Original title: Poppen

A house, a party, a bunch of 18-year olds. Looking for a suitable girlfriend, Alex dumps frustrated Isabel, which in return hits on Alex' best friend Schweiner, who tries to score the unapproachable Sammy. Sammy rather spends her time with permanently stoned Sven. It's a night of losing, finding and too much pot smoking.