In 1979, in a China undergoing rapid changes, it is still forbidden to listen to pop music. Platform is a record young people listen to in secret. Minliang and his friends, an official theatre company, present a play in praise of Mao Zedong. With the 1980s, the theatrical troupe’s life changes: pop music, permed hair, cigarettes... This feature film follows the artistic and emotional tribulations of the young artistes over a ten-year period against a backdrop of revolutionary disappointment, a bygone past and privatisation.