A man with the ability to exorcise demons fights to protect his loved ones after a sudden surge in demonic possessions. After discovering his nephew's girlfriend has the same supernatural gift, they join forces for the ultimate confrontation. Inspired by actual events.

Alegría is a mood, a state of mind. The themes of the show, whose name means "jubilation" in Spanish, are many. Power and the handing down of power over time, the evolution from ancient monarchies to modern democracies, old age, youth - it is against this backdrop that the characters of Alegría play out their lives. Kings' fools, minstrels, beggars, old aristocrats and children make up its universe, along with the clowns, who alone are able to resist the passing of time and the social transformations that accompany it.