Daniel Brennan is a deaf man released from prison, ostracised from friends and family, seeking to discover unravel the events that led to his imprisonment.
Mark Herbert and Gwen Gorst are executive producers for Warp Films, alongside series writer William Mager, with Rebecca Ferguson and Jo McClellan for the BBC.
[2] The majority of cast and many members of the crew are deaf or use British Sign Language.
The cast is led by Matthew Gurney with Lara Peake, Anne-Marie Duff, Eddie Marsan and Rose Ayling-Ellis.
[3] The cast also includes Stephen Collins, Ace Mahbaz, Sophie Stone, Olive Gray, Joe Sims and Julian Peedle-Calloo.