The scene is set for N.J. Crisp’s classic thriller Dangerous Obsession: A sunny afternoon… Sally Driscoll waters the plants in the conservatory of her luxurious home. It’s a peaceful scene… until John Barrett unexpectedly appears – and he’s not selling double glazing. What did happen in Torquay? Will Sally and husband Mark ever feel safe in their own home again? Dangerously obsessed, Barrett strips away the conflicting secrets of the Driscoll’s apparently perfect lives until nothing is left in this compulsive psycho-thriller by a master of the genre.

Norman James Crisp, known as a writer only by his initials and surname, N. J. Crisp, was a prolific British television writer, dramatist and novelist.

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.

In 1968, he co-created The Expert, a serial about a forensic scientist, with Gerard Glaister, the Producer. In 1972 the pair repeated the act with the boardroom drama The Brothers.

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 and starred Ray Winstone, Tim Dutton and Sherilyn Fenn.

Churchill Theatre, High Street, Bromley, BR1 from 26th – 30th November. Times: 7.30pm; Thur & Sat matinees 3pm. Phone: 0203 285 6000. Admission: @22 – £37