It’s winter holidays and fourteen-year-old Ana discovers that the metal plate she has in her arm from an accident she suffered as a child is now receiving a strange message in Morse code.

Based on the play of the same name, the film features Siamese twins Annie and Dani, who face physical separation in an act that is as surgical as it is existential. Willie, another brother who has to operate on them, confesses his desire to be a Siamese and asks to sew himself to one of them. The tensions and obsessions of the cast become entangled with the fantastic fiction; meanwhile, the main location threatens to collapse.