At only five years old, Saroo Brierley got lost on a train in India. Unable to read or write or recall the name of his hometown or even his own last name, he survived alone for weeks on the rough streets of Calcutta before ultimately being transferred to an agency and adopted by a couple in Australia.

In this singular exploration of legacy, love, loss, and the enormity of existence, a recently deceased, white-sheeted ghost returns to his suburban home to try to reconnect with his bereft wife.