In a contemporary city, a mysterious outbreak of sudden blindness begins to affect the population. Chaos ensues as the victims, completely devoid of sight, are isolated in a mental asylum by the government, which fears that the situation will spiral out of control. Among those trapped are a doctor, his wife, who inexplicably retains her vision, and a group of diverse characters that represent the best and worst of humanity in times of crisis.
As the days go by, tension and desperation grow among the inmates, turning the asylum into a microcosm of society. The lack of basic resources, such as food and medical care, drives the prisoners to despair, revealing the darkest truths of human nature. The doctor's wife, being the only one able to see, assumes a crucial role in guiding and protecting her husband and others while trying to maintain a glimmer of hope amidst the madness.
In this intense psychological drama, the story explores themes of the fragility of civilization, the loss of humanity, and how, in total darkness, people can shed their masks and confront their most primitive instincts. The struggle for survival becomes a disturbing commentary on the blindness of the modern world, leaving viewers questioning their own perception of reality.