Mood: The mood of the video appears to be eerie, suspenseful, and foreboding, hinting at a horror or thriller theme. The use of dark colors, fog, and an old mansion creates an atmosphere of mystery and fear, suggesting that the video may be a teaser for a horror movie or a suspenseful drama.

Environment: The environment of the video seems to be set in an old, isolated mansion surrounded by trees and a foggy atmosphere, likely in the early 20th century given the title '1920'. The setting appears to be a rural or countryside location, possibly in India, given the language of the video. The mansion seems abandoned or uninhabited, adding to the sense of eeriness and suspense.