Indigo is the colour blue of the aura given by a psychic to children endowed with clairvoyance or hypersensitivity (mediumnity). In the film, Nora, a 13-year-old girl, is confronted with violence and the world of the irrational. Her entourage is disturbed by her visions but seems indifferent to her suffering. Indigo tells the initiatory journey of this child in search of her own truth.