In 2009 the choir of the Mondine di Medicina (rice-weeders of Medicina, not far from Bologna) has been invited to sing at the concert of the May Day that takes place in Rome. Inside the pullman, during the trip, the rice-weeders practise their songs, in a kind of reharsal of the concert. The images of the trip are alternated with the tales of the rice-weeders and with the memories of their lives and of their struggles for the labour rights. However the choir that will sing in Rome is not complete: Pina had to remain at home...