Hercule Poirot can’t resist a case, even when holidaying in Brighton with his dutiful friend, Captain Hastings. When a precious pearl necklace vanishes from a locked hotel room, a puzzling case of deduction ensues for the Belgian detective. The seventh short story from Agatha Christie’s collection, Poirot Investigates features acclaimed DC actor and vocal artist David Bryan Jackson, along with musical renditions of Irving Berlin’s classic “Puttin’ on the Ritz,” by Chicago trumpeter Markus Rut...