Who Killed “Agatha” Christie?

Who Killed “Agatha” Christie? is a 1978 play written by Tudor Gates.

The plot centres around theatre critic Arthur “Agatha” Christie. Christie is contacted by the playwright John Terry, who claims that Christie's lover is having an affair with his wife. Terry's solution is murder. Soon it dawns on Christie that John Terry actually intends to kill Christie, whom he blames destroyed his theatre career with his critical reviews.