Macarena’s world begins to crack when her classmates reveal a truth she never expected—the child Sonia is carrying may not belong to her brother, Gustavo. As doubts turn into heartbreak, buried secrets surface. Meanwhile, Armando can no longer carry the weight of guilt and finally confesses to his wife about what truly happened with Sonia during their workouts. Love, betrayal, and forbidden emotions collide in this intense chapter where every heartbeat hides a secret.