In "Murder on the Orient Express" (2017), famed detective Hercule Poirot finds himself aboard the luxurious Orient Express train, where a murder occurs. With a train full of suspects, Poirot must unravel the intricate web of lies and secrets to uncover the identity of the killer before they strike again. As he investigates, he discovers surprising connections and motives, leading to a thrilling conclusion that challenges his moral compass.