London

Syd (Evans) awakens from the latest in a long series of drug- and booze-fueled benders when he received a phone call from a friend informing him that his ex-girlfriend London (Biel) will be moving away to California with her new boyfriend in a few days, and that a going-away party is being thrown for her that evening. Although not invited to the bash, Syd decides to attend anyway, bringing along Bateman (Statham), a banker who moonlights as a cocaine dealer.

Bateman is carrying a large supply of cocaine. After arriving at the party at the condominium belonging to the parents of a club girl Rebecca (Isla Fisher), he and Syd install themselves in the bathroom, where they snort line after line while guzzling tequila and discussing philosophical matters regarding love, sex, and emotional pain. For example, Syd was never able to tell London that he loved her, while Bateman is impotent.

The private party-within-a-party is soon joined by Maya (Kelli Garner) and Mallory (Bryant), who use their cocaine and feign sympathy with Syd and Bateman. When Syd learns that London has arrived, he talks on and on until Bateman challenges him to go out and talk to her.

After a heated confrontation in the middle of the party, Syd and London decide to leave to talk somewhere more private. As they are leaving, a fight ensues in which Syd and Bateman severely beat other male guests, and they barely make it out of the party. After a little while they make up in Syd's car and have sex later in London's apartment. In the last scene, at the airport, Syd says "I love you". Although this impresses London deeply, she still leaves him.