A decrepit house in Badajoz, Spain, on a cold winter night in 1925. Laura and her mother Adela, who is confined to a wheelchair, are faced with the possibility of putting an end to the grumpy grandfather's life, who is around ninety-two years old. But then, suddenly, cousin Enrique, a doctor by profession, shows up, which will change the course of events…
Unfortunately the movie El cianuro… ¿solo o con leche? is not yet available on HBO Max.
| Directing | Mara Recatero | Director |
| Editing | Juan Sanz | Editor |
| Writing | Juan José Alonso Millán | Theatre Play |
| Writing | Mara Recatero | Writer |
| Sound | Andrés Gregorio | Sound |
| Production | Andrés Gandara | Producer |
| Editing | Pedro Pablo Aguado | Editor |
