Stopline

José Costa is a Brazilian ghost writer. Returning from a ghost writers convention his airplane is rerouted to Budapest. His life is also rerouted when he meets Krista and with her help, learns "the only language in the world which, according to the tongue-wagers, the devil respects.

Two speleologists, Esteban and Pedro, travel to a mountainous area located in northern Spain, near a small village, to study a newly discovered cave and determine if it is of scientific interest, while Gabi, Esteban's wife, awaits their return on a lonely road at the foot of the mountain.