During the making of a video film about a communist printing press, a union member and a leftist activist discuss how to present their information, especially how to caption two specific images: one of a protest in Portugal, the other of a strike in France. One of them decides to write to his son, a manual worker living outside of Paris with his girlfriend, telling the young man about his troubles.
| Actor | Role |
|---|---|
 Michel MarotMichel | Michel |
 Anne-Marie MiévilleOdette | Odette |
 Christian FenouillatMan, Michel's Son | Man, Michel's Son |
 Catherine FlorietWoman, Girlfriend of Michel's Son | Woman, Girlfriend of Michel's Son |
 Jean-Luc GodardUnion Member (voice) | Union Member (voice) |