 Like Edge of Darkness, with its subject matter of nuclear waste cover-up, Natural Lies took its alarming theme and cleverly enveloped it within a thriller; resulting in a suspenseful story capable of standing up to the Hitchcock comparisons that it occasionally invited.Continuing his exploration of serious issues about society, Pirie researched Eastern Europe's Black Triangle for the Screen Two presentation "Black Easter" (BBC, tx.4 June 1995).