On November 27th, 1871 one of the most atrocious events happened in the Cuban territory, the regiment of the Spanish army along with the Spaniard corrupt government that ruled the island, conspired to destroy the lives of 8 students of medicine. Based on real events. In 19th century Havana a class of first-year medical students are imprisoned for a crime they did not commit. For 16 years fellow cellmate Fermín Valdés Domínguez has struggled to prove the innocence of his classmates. Suddenly, a new clue places him close to discovering the key that would unravel the hidden truth.