It's the end of an era as David Suchet finally waves goodbye to our favourite Belgian. Crippled with arthritis, Poirot is now using a wheelchair and has a life-threatening heart condition, but remains as sharp as ever. Calling on old friend Captain Hastings for assistance, he returns to Styles, where the pair first met 30 years earlier on a murder investigation. The detective is convinced the country house is once again harbouring a killer, and as guests fall victim to a mysterious attacker, he must summon the last of his strength to battle his ultimate nemesis.