This programme puts the rave-culture phenomenon of the nineties under the microscope. With an estimated half-million young Britons immersing themselves in the world of insistent rhythms, lurid visuals and frenzied modes of self-expression every weekend, rave is no longer an underground fad. The programme traces the roots of rave, documents the dangers of the drug Ecstasy - and some of its possible benefits when used in psychotherapy - and illustrates how the movement has helped make music technology more accessible.