The film stars David Tennant, Elisabeth Moss, Gabriel Byrne, Michael Gambon, David Bamber, Olivia Poulet and Trevor White.

The film was released on 6 April 2017 by GSP Studios International.

Working out of Kingsley Hall in East London throughout the 1960s and 1970s, Laing performed various experiments on people diagnosed as mentally disturbed.

His unconventional methods included a form of self-healing known as metanoia, causing controversy in the medical profession and later radically changing perceptions of mental health around the world.

[2] The film was released on 6 April 2017 by GSP Studios International.