In 1970, a missile veers off course and crashes inside the Zona del silencio. Two locals watch Americans recover the missile, but when they go in after them, something goes terribly wrong. Thirty years later, scientists arrive to investigate all the unexplained phenomena in the region.
Just arriving from his town to the capital, Roberto asks for accommodation to his ambitious relatives. As he does not bring money, he is forced to work as a bricklayer in a construction in which he lives an endless number of dangerous adventures.
Three young couples go to a cabin in the middle of the woods, their guest has a little secret that she doesn't like talking about. The next day one of the guys goes swimming and disappears, another one goes looking for him and doesn't come back either. One couple goes loooking for the forest ranger but their car breaks down and at the cabin the other two girls are alone, who will be next to die?
Tita (Lumi Cavazos) nasceu na cozinha do rancho de sua família, quando sua mãe (Regina Torné) estava cortando cebolas. Logo em seguida seu pai morre de um ataque cardíaco fulminante, por ter sua paternidade questionada. Com isso Tita é vítima de uma tradição local, que diz que a filha mais nova não pode se casar para que cuide da mãe até sua morte. Ao crescer Tita se apaixona por Pedro Muzquiz (Marco Leonardi), que deseja se casar com ela. Sua mãe veta o matrimônio, devido à tradição, e sugere que ele se case com Rosaura (Yareli Arizmendi), a irmã dois anos mais velha de Tita. Pedro aceita, pois apenas assim poderá estar perto de Tita.
A respectable family is shot by a gang brutally together. Only the mother survives the perfidious raid. They, although psychiatrist, finds the way back only laboriously in the everyday life. However, then you play the chance one of the members of a gang in the hands. A young fellow which does not finish on his part the recollections and takes up unsuspectingly the help of the doctor. This recognizes immediately that the illustrated case is more own to her. Now the woman knows only one: Revenge. Under drugs her patient reveals details and names. As a result through various tricks and in varying disguising she approaches to the single members of a gang. It begins a hunt on life and death...
A professor suspects that a vicious killer may have discovered a way to return from the grave and continue his violent spree. His fears are proved true when a group of teenagers decide to pull a Halloween prank by stealing the killer's body from the morgue. When the teens recite an incantation from an old magic book over the corpse, it begins to come back to life, along with all of the bodies from the nearby cemetery.
At the highest place in Tarahumaran mountain, a Shaman was brutally murdered. The investigation leads detective Aguilar to ask for help to a veterinarian and a priest, to find out that the crime is just the beginning of a series of brutal murders by a nahual (Wolfman)
