Under the two world sun

When Sofía Dávalos moves to Mexico City for her father's new job, she expected a boring life until she returned to Spain. But everything changes when she meets Arsenio Macuil, a reserved and enigmatic young man who seems to hide a past full of secrets. Despite his apparent coldness, Sofía feels inexplicably drawn to him.

Arsenio lives under the weight of a family legacy that he cannot ignore: the Macuils are guardians of a Mexica portal. According to an ancient tradition, his family guards a hidden door that connects the human world with an unknown dimension. No one can get close to her, much less Sofia.

When strange events begin to disturb the tranquility of the city-shadows that move on their own, inexplicable disappearances, tremors, and a whisper that seems to come from the darkness-Sofía and Arsenio must work together to discover the truth. But the closer they get to the secrets the portal holds, the more dangerous their bond becomes.

Between intense emotions, family conflicts, and a connection that defies logic, Sofía must decide if she is willing to risk everything for the truth, even if that means facing the shadows that lurk not only in the city, but also in her own heart.