A butterfly in a glass box provides a metaphor for migrant experience in this intriguing documentary. Disorienting abstract imagery, evoking both the beauty and alienation of the 'foreign' experience, is blended with fragmented spoken impressions, giving glimpses of how the individual's identity, memories and interaction with the world are transformed by displacement. Finding freedom and joy alongside nostalgia and sadness, Glass Box shines new light on the subject of migration.