Three farmers work on a farm in Entre Ríos, a sparsely populated lowland region of Argentina traversed by rivers. Their crops are affected by ‘black frost’ which threatens to destroy their harvest. One day, a young woman appears at their door; blithely and self-assuredly she begins to influence their familiar routines. The bewildered farmers yield to Alejandra’s interventions: she dons Heribertos’ dead wife’s clothes, accompanies Benigno to a greyhound race and wins young Lucas’ friendship. Shortly afterwards, the frost disappears.