Britain's drug culture is changing - fast. Cocaine and ecstasy are out and mephedrone, ketamine and GHB are in. Shot in Leeds over the biggest party weekend of the year - Halloween and Bonfire Night - this film gets under the skin of the new party drugs. We follow Holly, Tony and Oliver from the dancefloor to the morning after and, with unique access to the first specialist 'club drug clinic' outside London, we find out what happens to those who want to keep going even when the party's over.