When Raimundo Silva, humble proof-reader for a Lisbon publishing house, takes it upon himself to insert a negative into the sentence of a history book, he rewrites history. The effect of this act of insubordination is to make his editor, the voluptuous Dr Maria Sara, fall in love with him.

When Raimundo Silva, humble proof-reader for a Lisbon publishing house, takes it upon himself to insert a negative into the sentence of a history book, he rewrites history. The effect of this act of insubordination is to make his editor, the voluptuous Dr Maria Sara, fall in love with him.