The story begins when Hercule Poirot, longing for a peaceful vacation, boards the luxurious Orient Express train from Istanbul to London. A journey that starts in elegance turns into a nightmare when an avalanche halts the train in the middle of the remote, snow-covered mountains of Yugoslavia. The next morning, a shady antique dealer named Samuel Ratchett (Johnny Depp) is found brutally murdered inside his compartment with a dozen stab wounds.
Trapped alongside a dozen strangers in an isolated carriage, Poirot is asked by his friend and train director, Bouc (Tom Bateman), to swiftly unmask the killer before local police arrive. Poirot's investigation gradually reveals that Ratchett was actually a ruthless criminal with a dark past, involved in the tragic kidnapping and murder of a young child in the United States. Every passenger in that carriage—from the flamboyant widow Caroline Hubbard (Michelle Pfeiffer) and devout missionary Pilar Estravados (Penélope Cruz) to Princess Dragomiroff (Judi Dench)—turns out to harbor hidden motives interconnected with the victim's past tragedy.
The film's primary strength lies in Kenneth Branagh's performance, which successfully blends Hercule Poirot's eccentric, obsessive-compulsive nature and sharp intellect with a deeply human emotional vulnerability. Sporting an iconic, attention-grabbing mustache, Poirot is portrayed as a man who views the world in black and white, yet is gradually forced to confront the gray areas of human morality. Meanwhile, Johnny Depp delivers an effective performance despite limited screen time as Samuel Ratchett, successfully exuding a cunning, paranoid, and repulsive aura that immediately makes the audience understand why so many people wanted him dead.
Beyond Branagh and Depp, Michelle Pfeiffer shines as Caroline Hubbard, delivering the most poignant dramatic weight in the final act. Pfeiffer's character transition from a seemingly shallow, chatty socialite into a figure carrying profound inner wounds is executed brilliantly. Although the sheer number of characters leaves several stellar supporting actors like Willem Dafoe and Olivia Colman with limited room for development, their brief interactions still manage to sustain psychological tension inside the carriage.
In terms of aesthetics and cinematography, the film is an extraordinarily lavish visual treat that pleases the eye. Shot on the rare 65mm film format, cinematographer Haris Zambarloukos captures the breathtaking snowy landscapes of the Alps alongside the intricate interiors of the Orient Express, rich with mahogany wood, velvet, and crystal glass. The use of unique camera angles—such as overhead shots peering down from the carriage ceiling during interrogations—injects fresh visual dynamism into a tight, confined setting.
The audio department also plays a crucial role in building an atmosphere of mystery that is both elegant and melancholic. Branagh's frequent collaborator, composer Patrick Doyle, crafts an orchestral score capable of pacing the investigation with soft piano melodies that conceal underlying tension. The closing song, Never Forget, sung by Michelle Pfeiffer herself, provides a warm and heartbreaking emotional finale following the dilemma-filled climax of the case's resolution.
However, for audiences already familiar with the plot of Agatha Christie's novel or Sidney Lumet's 1974 film adaptation, the twist ending naturally loses its element of surprise. Several critics also noted that the first half moves slightly slowly in introducing every suspect before packing too many emotional confessions into the final stretch. Overall, while it does not offer a radical reinvention of the storyline, Murder on the Orient Express remains a highly elegant, visually captivating classic mystery that satisfies as a character study of grief and vengeance.