In the aftermath of the May Revolution, which sparked the end of Spanish colonial rule and the establishment of the first independent government in Buenos Aires, revolutionary leader Juan José Castelli is given the order to oversee the execution of former viceroy Santiago de Liniers. This pushes Castelli into a deep moral conflict, forcing him to confront the tension between revolutionary justice and personal conscience, as well as the human cost of political change.
| Actor | Role |
|---|---|
 Héctor AlterioSantiago de Liniers | Santiago de Liniers |
 Damián de SantoJuan José Castelli | Juan José Castelli |
 Pablo CedrónDomingo French | Domingo French |
 Mónica GalánAna Perichon | Ana Perichon |
 Roberto VallejosMariano Moreno | Mariano Moreno |
 Horacio PeñaCornelio Saavedra | Cornelio Saavedra |
 Alejandro AwadaEnglish agent | English agent |
 Érica RivasCastelli woman | Castelli woman |
| PPascual ConditoObispo | Obispo |
| CCarlos GamalloLieutenant | Lieutenant |
| VVian AviánSergeant Ochoa | Sergeant Ochoa |
| MMarina ZeisingDaughter of the english agent | Daughter of the english agent |
 Déborah VidretUncredited | Uncredited |