Mood: The mood of the video appears to be melancholic and introspective, with a sense of longing. The theme seems to revolve around heartbreak, love, or a deep emotional connection, as suggested by the title 'Letters' and the somber expressions of the individuals in the image.

Environment: The setting appears to be a dimly lit room, possibly a bedroom, with the couple sitting or lying on a bed. The presence of a clock and scattered letters suggests a quiet, intimate space where personal and emotional moments are shared.