Chloé returns after partying. Lázaro, on the other hand, begins his day. Both have different lives, they don't even know each other, but they have a common problem. How far does their freedom go? Behind The Door is a social criticism that tries to show the reality of many people who daily suffer the consequences of the lack of freedom in any of its forms.
| Actor | Role |
|---|---|
 Lidia VeigaChloé | Chloé |
 Francisco NogueiraLázaro | Lázaro |
 Fran ParedesFernando | Fernando |
 María CostasMaría | María |
 Miro MagariñosÁlvaro | Álvaro |
| FFernando RivasMonitor de Gimnasio | Monitor de Gimnasio |
| DDavid SanmarcoVerdugo | Verdugo |
| IInés SilvaLola (voice) | Lola (voice) |
| BBasilio RodríguezTaxista | Taxista |
| JJacobo LombaRojigualdo 1 | Rojigualdo 1 |
| LLuís Lois CarroRojigualdo 2 | Rojigualdo 2 |
| NNéstor SotoRojigualdo 3 | Rojigualdo 3 |