In the sixties after writing some single dramas, Crisp moved to writing for serials and turned out scripts for many BBC series including Compact, R3, Dixon of Dock Green, Dr Finlay's Casebook, Colditz and Secret Army.
His 1996 play That Good Night starred Donald Sinden, Nigel Davenport, Lucy Fleming, Patrick Ryecart and Julie-Kate Olivier and was directed by Edward Hall.
Crisp's 1987 psychological thriller Dangerous Obsession was filmed in 1999 as Darkness Falls, starring Ray Winstone, Tim Dutton and Sherilyn Fenn.
However, Crisp was so appalled at the end result and how his famously intricate plot had been turned on its head without his permission that he insisted on having his name removed from the final print.
[citation needed] He was married to Marguerite (née Lowe), had three sons and one daughter and five grandchildren.