In a dark and bustling city of the 1950s, a renowned psychologist, trapped in his own mind, faces an existential crisis following a series of violent crimes that shake his community. His life takes an unexpected turn when he begins to receive threatening letters from a serial killer who seems obsessed with him and his family. As he tries to protect his wife and young son, the man plunges into an internal struggle with his own fears and demons, questioning his abilities as a father and husband.
With the police overwhelmed and paranoia taking over his daily life, he is forced to confront not only the external danger but also his unresolved traumas that have haunted him for years. Along the way, he meets a young mother who, like him, has suffered in silence; together they find mutual comfort amidst the terror. But as their relationship deepens, he realizes that the true monster may be closer than he thought.
Loaded with tension, the narrative explores themes of masculinity, vulnerability, and the constant struggle between duty and fear. With an unexpected twist toward the end, the protagonist is compelled to face his worst fears, not only to protect his family but also to rediscover the essence of love and courage in a world where darkness seems to reign.