The Riddle of the Sphinx (Inside No. 9) was characterised by Pemberton as a thriller in the style of Anthony Shaffer's 1970 play "Sleuth", while Shearsmith identified the episode as particularly theatrical, in the style of "Sleuth" and Ira Levin's 1978 play "Deathtrap". BBC executives, according to Shearsmith, saw the episode as a cross between "Sleuth" and Willy Russell's 1980 play "Educating Rita" that read as if it had been authored by psychopaths. The executive producer Jon Plowman suggested that the first half of the episode plays out like a radio play. The word-play and tea-drinking in this part of the episode are, in the writers' opinion, very
The Brothers (Shirley play) King's Men. Some scholars have assumed that Shirley wrote for the King's Men only in the final phase of his career, in 1640–42; but this is by no means a certainty. Shirley's long and productive connection with Queen Henrietta's Men dominated most of his career, though he wrote "Love in a Maze" for the King's Revels Men in 1632. The eccentric nineteenth-century critic F. G. Fleay originated the argument that the play that was published as "The Brothers" in 1653 is a revision of an otherwise-unknown play by Shirley titled "The Politic Father," which was licensed by the Master of