Mood: The mood of the video appears to be dark, intense, and romantic, with a sense of mystery and passion. The theme seems to revolve around love, desire, and possibly revenge or obsession, given the title 'Ek Villain Returns' and the overall aesthetic.

Environment: The environment or setting of the video is likely to be urban and possibly gritty, given the dark and moody tone. The presence of a woman in a black dress and the intense expressions of the men suggest a high-energy, dramatic setting, possibly a nightclub or a cityscape at night.