In a quiet neighborhood of Mexico City in the 1970s, a man, deeply obsessed with the idea of protecting his family from the corruptions of the outside world, becomes the dictator of his own home. This jealous and controlling father decides to isolate his wife and children from all external influences, effectively keeping them prisoners in their own house. He fuels his paranoia with speeches about purity and morality, justifying his extreme actions as acts of love.
As family life progresses, the situation becomes increasingly oppressive. The mother, caught between her love for her husband and her desire for her children to know the world, begins to question the sanity of the situation. The children, in the throes of adolescence, grapple with their identity and a deep need to experience life, facing the tyranny of their father, whose extreme beliefs become less effective against the realities of growing up.
Tension builds until the façade of harmony collapses, revealing the fractures within the family. The decisions made by each family member turn into a struggle for freedom and the quest for truth, in an environment filled with lies and restrictions. In this claustrophobic setting, love, freedom, and madness intertwine their destinies in a powerful story that explores the complexity of family and the pursuit of purity in an impure world.