An actor is called for the project of an odd director in which there is only one condition: filming in one go while staying always in character.

Mateo and Lucía are moving abroad. The day before leaving, Mateo reunites with his lifelong friend, Dionisio, to spend one last summer afternoon together. However, as their inevitable goodbye inches closer, Mateo begins to perceive a series of strange events. In particular, he begins to hear a goat's bleat…