They are twenty years old, there are seven of them - four boys and three girls - and they decide to start a musical group (rather jazz). Their rehearsal space is a disused hangar on the port, which they are gradually furnishing. They work on their music assiduously, while living complicated, unsatisfactory romantic relationships, and repeated conflicts. Under the influence of the most passionate of them, the kind creative hobby becomes a fascinating activity. Until one day, at the end of their first public concert, they decide to live completely in the hangar and devote themselves to recording a model disc. Internal tensions and an external event will not take long to disturb the apparent harmony of their life outside the world.