Juan Sayago returns to his hometown after serving 18 years in prison for killing a man in self-defense. Intent on starting a peaceful life, he finds that the residents have not forgotten or forgiven his past. The brothers of the man he killed, Julián and Pedro Trueba, hold a deep-seated grudge against him. Julián, the aggressive and vengeful brother, eagerly waits for an opportunity to exact revenge, while Pedro is more introspective and conflicted about the situation.

As Juan tries to reintegrate into society, he encounters hostility and distrust from the townspeople who are fearful of the unresolved feud. Despite his efforts to move forward and find tranquility, the persistent threat from the Trueba brothers looms large. Tensions escalate as rumors and confrontations stir up old emotions, pushing all involved toward an inevitable and dramatic resolution.