Michael Lipman who plays Seth based his character on 3 different people. One was Kim Peek who was the Savant inspiration for Rain Man,then two brothers who both were Savants and another man who was a client of his when he was a hairdresser.
This is the 2nd film that Michael Lipman has been directed in by Jack Salvadori. The first was the award winning 'The Liar' in 2018