The image above piques my interest in theatrical horror. What we see is the back of a person who is illuminated from their front (considered backlight to the viewer).  The light is a cool blue and has a very hazy, misty texture. The light appears to be hitting the subject straight from behind at a medium intensity. The haziness of the light provides for low to medium visibility. The lighting creates an intensely eerie atmosphere in the space and darkens the mood substantially. The cool blue color of the light offered a chilling, though intriguing, vibe. The color is not saturated enough darken the space, which is, I believe, where the sense of frightening intrigue comes from. The clarity of the light, or the lack thereof, provides the chilling factor and the mystery of the situation at hand. Should the color have been different, say red perhaps, there would be more of a sense of danger and perhaps fear.