Mood: The mood of the video appears to be dark and intense, with a sense of mystery and suspense. The theme seems to revolve around a crime or investigation, given the title 'CASE' and the protagonist's attire and demeanor, which suggests a character who is possibly a detective or someone involved in a serious situation.

Environment: The setting of the video is likely an urban environment at night, with the presence of a car and a police vehicle in the background. The dim lighting and the protagonist's stance suggest a gritty, possibly dangerous atmosphere.