After a period of inactivity, Crisanto, a police inspector, returns to the service. When a friend of his is murdered, he decides to take over the investigation.

Madrid, Spring 1913. During a visit to the casino, a beautiful 20 year-old woman catches the eye of a 50 year-old rich widower. But the gamble he is about to commit is far greater than he suspects.

In the 18th century in Madrid, the Marquess of Esquilache, King Charles III of Spain's former minister, bans on wearing the popular wide collar with a long coat and brimmed hat. Along with other measures provoke a massive riot in the city.