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…

A chance encounter at a party reunites two old childhood friends, forcing one of them to confront the secrets of her past and the reason why she disappeared without a trace.