The little Alice disappears the day of his First Holy Communion (catholic ceremony). Victor and Laura agents arrive to town to infiltrate the neighbors and try to unmask the culprit, but it looks like it is one of the guests attending to the celebration. The issue is difficult because they have ahead several family secrets to discover. The commissioner Casas takes charge of the investigation officially. Laura will be the substitute teacher in the class of Alicia and Andrew accept a job as a waiter in the restaurant's grandfather Alicia.
Victor y Laura, dos policías muy diferentes, se hacen pasar por un falso matrimonio para investigar la desaparición de una niña mientras celebraba su primera comunión. El tiempo juega en su contra y encontrar al culpable resultará más complicado de lo que imaginaban.