Agatha Christie creations Tommy and Tuppence Beresford gave rise to other guy-and-gal crime-solving couples. Think Nick and Nora Charles of The Thin Man, for example, and Hart to Hart. But the Beresfords had it right the first time, flitting about 1920s England, trading tart repartee and discovering whodunit. Christie introduced readers to these upper-class sleuths more than 75 years ago; decades later, their panache and prickly wit, nicely captured by Francesca Annis and James Warwick, delighted viewers of Mystery! You'll see why. Stars Francesca Annis, James Warwick, Reece Dinsdale, Arthur Cox