After a suicide attempt, Marcos, a grieving writer, checks himself into a psychiatric hospital. There, a treatment slowly begins to silence the voice of his late wife — the only connection still tying him to the world. But as strange, unexplained signs start to appear, he's left wondering whether Julieta's spirit is truly guiding him... or playing one last trick on him. Moving through therapy, unexpected bonds and a forgotten manuscript, Marcos is forced to confront his guilt, his memory, and the real possibility of healing. El Hombre de la Luna is an intimate, poetic drama about love after loss, set on the thin line between madness and emotional truth.