The occupants of Real del Monte's former Miners' Clinic beg Alberto and Víctor to investigate the haunted apparitions of tormented miners.

Alberto and Víctor try to free an abandoned theater in San Luis Potosí from the evil presences provoked by the building's violent past.

Alberto and Víctor search the mummy-filled cemetery of Santa Paula Pantheon for the pained souls visitors claim to have encountered.

Alberto and Víctor investigate an old mansion in Guanajuato that hides a past full of witchcraft, torture and supernatural phenomena.

Alberto and Víctor look into an imposing English-style castle that seems to be inhabited by the ghosts of a violent and cruel past.

Alberto and Víctor explore the horrific stories of ghostly apparitions in Mexico's most sinister prison.