Two friends in Mexico discover the Lament Configuration and unleash Pinhead, but one decides to try to survive by swapping himself with someone else. Once they go missing, family members go in search of them, but find Pinhead instead.

Andre, recovering from a recent accident, agrees to help his friend Robert by taking over a house sitting job at a creepy home nestled in the hills above Los Angeles. As night comes, the house reveals its insidious nature as Andre begins hearing ominous sounds and experiencing strange occurrences throughout the house that lead him to believe he is not alone, and that someone, or something is in the house with him.

The corpse of a young man appears in a forest on the island of La Gomera. The case closes with the accusation to a local politician who is exonerated in the later judgment. Three years later, Sergeant Bevilaqua and his assistant, Corporal Chamorro, are sent to the island to revive the investigation. Corporal Anglada accompanies them, the last one who saw the young man alive.