In Cuglieri, a small town in midwestern Sardinia, festivities during Holy Week are accompanied by a small choir called a concordu. The choir is composed of four male voices, and they perform in Latin the Miserere and Stabat Mater. The tradition is of extraordinary musicological interest, having been passed on orally to the present day. The film presents two generations of singers while they are active in the three most intense and meaningful days of Holy Week.