Elephants Can Remember
While Poirot investigates the murder of a renowned psychiatrist, Ariadne Oliver becomes an amateur sleuth of her own when her goddaughter tasks her to find out the truth about the nature of her parents' mysterious deaths.
 
S13, Ep22013 The Big Four

S13, Ep32013 The Labours of Hercules
 
S13, Ep42013 Dead Man's Folly
 
S13, Ep52014 Curtain

Based on Agatha Christie's short stories and novels. Hercule Poirot is a famous Belgian detective, who always gets embroiled in a mystery, usually along with his faithful sidekick Captain Hastings and/ or Scotland Yard chief inspector Japp.