Mood: The mood of the video appears to be romantic and emotional, with a sense of longing. The theme seems to revolve around a complicated relationship or a love story, with the title 'Kuch To Hai' suggesting that there is something more to the story. The overall emotion conveyed is one of introspection and possibly heartbreak.

Environment: The setting of the video appears to be an indoor location, possibly a dimly lit room or a secluded spot. The blurred background suggests a focus on the two main characters, with the surroundings being secondary. The atmosphere seems intimate and quiet, with a focus on the emotional interaction between the two characters.