The Big Four

An unexpected visitor collapses in Poirot's bedroom, leaving behind cryptic clues that lead to an international crime cartel known as the Big Four. The cartel's enigmatic leaders include a Chinese mastermind, a likely American, a Frenchwoman, and the elusive "Destroyer." Following the visitor's death, Poirot and Hastings embark on a thrilling investigation that promises to be Poirot's most perilous case yet, blending intrigue with a complex web of international crime.