Telma (Norma Pons) is concerned when her father Salerno dies of a heart attack in a movie theater while watching a film of two thugs beating another man. She believes that there is something more to it, and seeks the help of Deganis (Patricio Contreras), a forensic psychiatrist. Deganis, having found out the names of the two actors doing the beating onscreen, looks one of them up. His name is Walensky (Lito Cruz), and he is looking for Smith (Martin Adjemian), the other actor.
| Actor | Role |
|---|---|
 Patricio ContrerasGustavo Deganis | Gustavo Deganis |
 Lito CruzWalensky | Walensky |
 Norma PonsCarmen | Carmen |
 Martín AdjemiánSmith | Smith |
| SSilvia MañanesTelma | Telma |
| JJorge García MarinoNot listed | Not listed |
 Angela RagnoCasera | Casera |
| AAntonio UgoOrdóñez | Ordóñez |
| EEnrique ScopeSalerno | Salerno |
| PPablo IemmaFito | Fito |
| LLorena RivasNot listed | Not listed |
| EElita AizembergNot listed | Not listed |
| DDaniel Martínez CastroWalensky joven | Walensky joven |