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.

Santiago, an Argentine police corporal, crosses the border into Uruguay fleeing from other police officers who are looking for him. Using his uniform, he inspects regional food stalls, sampling dairy products and cold cuts to survive, while trying to go unnoticed among the locals. Without money or lodging, but with empathy and cunning, he begins to plot a new life, receiving help from local characters he meets along the way and even finding what he believes to be the love of his life.