Warning: This post contains spoilers for Agatha Christie’s Seven Dials . Agatha Christie’s Seven Dials , based on the novel by the acclaimed mystery writer, is driven by a case that begins with a harmless joke gone wrong. After a party at Chimneys, a country estate that belongs to the family of Lady Eileen “Bundle” Brent, Gerry Wade’s co-workers decide to play a prank by placing several alarm clocks in his room. The next morning, Gerry (Corey Mylchreest) is found dead from a sleeping pill