A married couple (Barreiro and Caro) lose their two pre-teen children
(Martinez and Garcia) children during a family outing on the outskirts
of Tijuana. After the loss on a nearby hill, luck and good fortune
brings them back to their parents the next day who try to find out what
happened during the disappearance. Following their return, changes occur
in the behavior of children that suggest ominous and unspeakable events
that recall the night when the children were lost. As a loving couple,
loving parents trying to care for and protect their children. Ancient
legends and stories about the caves in which both children were lost are
too foolish and strange to believe, but being now manifested in their
children are hard to ignore.
http://en.wikipedia.org/wiki/Here_Comes_the_Devil