Global streaming giant Netflix has commissioned a feature documentary about memory, secrets and the unbreakable bonds of family from Simon and Jonathan Chinn’s prodco Lightbox.

When Alex Lewis awoke from a coma at 18 following a motorcycle accident, he had forgotten everything about himself, including his parents, his home and even his own name. But one thing he did remember was that the young man sitting next to him was his identical brother, Marcus, who would help his brother on the path to returning to and remembering his own life.

But in the process, Marcus left out a traumatic family secret.

The film premiered at the Telluride Film Festival earlier this month, where it garnered rave reviews, and will screen in the UK at the London Film Festival before its launch on Netflix on Oct. 18.

Tell Me Who I Am is directed by Ed Perkins, with Simon Chinn producing and Jonathan Chinn and Josh Braun executive producing. Vanessa Tovell is co-producer.

“We were so thrilled to see the way audiences embraced our film at its world premiere at the Telluride Film Festival which felt like the perfect place to introduce people to Alex and Marcus Lewis and their extraordinary and inspirational story,” said Simon Chinn, in a statement. “We are very excited for the film to continue its festival run before it launches globally on Netflix in October.”

“This film has had a deep and profound impact on all of us who have been fortunate enough to make it. The honesty and bravery Alex and Marcus Lewis have shown in telling their story is astonishing and it has been amazing to see audiences at Telluride respond so positively,” added Perkins. “We cannot wait to continue sharing this important, complex and ultimately inspirational tale with people around the world.”