It's Friday night in San Francisco and Ernie Townsend (STEVE VAN WORMER) is planning a guerilla-style rave party in an abandoned warehouse. When New York transplant Leyla Heydel (LOLA GLAUDINI) sends out a request over the Internet for a ride to the party, word quickly spreads about the impromptu get-together.
Among those attending are Colin Turner (DENNY KIRKWOOD) and his girlfriend Harmony Stitts (MACKENZIE FIRGENS). Colin has a surprise in store for Harmony and wants his brother, David (HAMISH LINKLATER), to hit the party with them. An aspiring writer whose career has so far been limited to writing computer manuals, David, a natural loner, is reluctant to go as he's never attended a rave, but his brother eventually convinces him.
As Ernie and his crew get the rave started, he must contend with a variety of conditions and complications, including hearty partygoers fueled by Ecstasy and other drugs supplied by Cliff Rafferty (ARI GOLD), as well as worries about the police showing up and shutting down their party.
When Colin proposes to Harmony at the party and David eventually takes his first hit of Ecstasy, things seem to be going well, especially when the latter meets and immediately falls for Leyla. With the night wearing on and after a run-in with a police sergeant (NICK OFFERMAN), the partygoers get down to the sounds of various legendary DJs - such as DJ John Digweed (JOHN DIGWEED) - while various attendees, including David, Leyla, and others, try to make sense of their young lives and the surprising revelations that occur as the dawn approaches.