Poirot Investigates is a collection of eleven short stories featuring Agatha Christie's famous Belgian detective, Hercule Poirot, accompanied by his friend Captain Hastings. Each story presents a standalone mystery-ranging from jewel thefts and kidnappings to fraud, blackmail, and murder-giving Poirot plenty of opportunities to display his sharp mind, attention to detail, and flair for psychological insight. The cases often involve clever twists, red herrings, and Poirot's signature method of using "the little grey cells" to reveal the truth.