A teenage girl in a yellow summer dress spins happily in a sunny flower field, cinematic wide shot circling around her as petals drift through warm afternoon light and rolling hills stretch into the distance. Cinematic hard cut to the same girl now sitting motionless on a subway train, wearing a dark winter coat and knitted scarf, tired expression, fluorescent overhead lights reflecting in the windows, close-up shot from across the aisle. Audio: birds chirping, wind through tall grass, faint laughter, then after the hard cut, train rattling, muffled announcements, and the low hum of fluorescent lights.