Within a prison in Santiago of the 70's, Jaime, a young prisoner who has been convicted for the violent and inexplicable crime of his best friend, has a definitive encounter with "the Stallion", an older man who inspires respect and holds the power behind bars. Searching for protection, Jaime develops with the man a relationship of affection and tenderness, discovers love and the need to be recognized, and later, becoming "The Prince", finally rethink his sexual identity, and the reason for the crime that took him to prison.