Agatha Christie's Poirot (1989)

S10E1 The Mystery of the Blue Train

Following a journey aboard the luxurious Blue Train from Calais to Nice, famed detective Hercule Poirot is called upon to investigate a shocking crime. Heiress Ruth Kettering is discovered brutally murdered in her private compartment, prompting Poirot to delve into a web of intrigue and secrets among the train’s passengers. With time running out, he must untangle the clues to uncover the truth behind this heinous act.