Fernando Sánchez has returned to the small fishing village by the Rock of Gibraltar, hoping to start a new life. There he meets a journalist in a similar situation, a local fisherman, and his nephew, a young man who's gotten mixed up in shady dealings with people from Gibraltar. In the luxury development next to the village, nothing is as it seems, and strange things happen in the tunnels of the Rock. The problems they find themselves embroiled in will change their lives forever. A dark and gripping thriller where the everyday coexists with ancient secrets, and where friendship, fear, and the Strait of Gibraltar become the true protagonists.