DBC Pierre reassesses the work of Nigel Balchin.
In addition to writing thillers such as The Small Back Room, Balchin was a scientist and one of Britain's first industrial psychologists.
When working for Rowntree's chocolates, he invented the Kit Kat brand name.
After his literary career had taken off with novels such as Lord I Was Afraid, No Sky and Mine Own Executioner, Balchin wrote for films and worked in Hollywood.
But his personal life became increasingly complicated.