Historical reconstruction of the last years of the Santander heroine, who from El Socorro led a good part of the community movement against the Spanish yoke.

An old man - in charge of taking care of the streets and keeping the lanterns lit that illuminated the nights of the city - a job known as “Sereno” - finds himself at the beginning of a day with an insomniac passerby. He decides to tell her his life, a series of tragedies that includes a poor childhood, loss of parents, estrangement from his beloved, marriage and loss of wife and son.

Dora, the daughter of the owner of the hacienda El Trapiche. Destined to marry the heir of another nearby farm, she asks to travel to the United States. There she meets her fellow countryman Leonardo, with whom she has a torrid affair. When they return to Colombia all kinds of situations will happen to them.