The opening sequence of 'The Conjuring' sets an ominous tone through its dark color palette and unsettling string music. It introduces the main characters, paranormal investigators Ed and Lorraine Warren, through a flashback story told by other characters. Ed and Lorraine are depicted as respected experts in a university lecture scene. The sequence establishes that the film is based on real events involving the Warrens and their investigations. It hints that the film will be a scary supernatural thriller in the vein of 'The Exorcist' through visual cues and an increasing sense of tension and unease created by the music.