Inés, Irene and Ivonne gather at their mother's house to attend their father's funeral; they will not return until a year after for the anniversary of their father's death, and it is at that precise moment that everyone will have to face another setback.
Blog is the surprising tale of a group of teenagers, 15 year-old middle-upper class girls who are well educated, smart, sensitive and savvy. A group of youngsters with a secret plan and a shared purpose, something they believe to be an absolute goal and a universal truth: the need to experience strong emotions to set them apart from the rest.
In a secondary school, a group of students (Maria, Sonia, Paula, Pol and Esteban) form a tight-knit bunch. Axia, a girl obsessed with supernatural issues, leaving them mesmerized and included in the group. For the 50th anniversary of the center, start some work on improving the facilities. Laura, the tutor of the course offers students a work of the institute history. As they investigate they discover that, during the Civil War, there were tunnels collapsed, leaving people buried who were hiding there, including several children. According to information obtained on the Internet, people are buried "appear" killing. Are the "E.S.O. (Hidden supernatural entities "). When they decide to enter the tunnel adventure turns into a nightmare.