It seems simple: an egg + sperm = one embryo. But if your sperm is "few, vague and abnormal" and your woman is premenopausal at age 37, things start to get complicated.
| Directing | Juana Macías | Director |
| Writing | Anna R. Costa | Writer |
| Writing | Juana Macías | Writer |
| Writing | Juan Moreno | Writer |
| Camera | Guillermo Sempere | Director of Photography |
| Production | Axel Kuschevatzky | Executive Producer |
| Directing | Celia Cuéllar | Script Supervisor |
