Puzzles: Pure and Complex

Puzzles: Pure and Complex is an episode of the BBC television documentary series Crime Writers, broadcast on November 12 1978. The series was produced by Bernard Adams.

The episode is based on the book Bloody Murder by Julian Symons and the theme revolves around authors Agatha Christie and Dorothy L. Sayers. Featured in the episode is also a newly scene from chapter 18 of Why Didn't They Ask Evans?

Featuring

 * H. R. F. Keating - presenter
 * Frederic Dannay - self
 * Patricia Hodge as Moira Nicholson
 * P. D. James - self
 * Christopher Scoular as Bobby Jones
 * Julian Symons - self
 * Colin Watson - self