based on novel   secretary   snow   flashback   crime scene   ensemble cast   1930s   detective   dutch angle   missionary   black and white scene   countess   travel   europe   count   directed by star   turkey the country   avalanche   cake   whodunit   murder mystery   train compartment   alibi   istanbul turkey   moustache   title same as book   train conductor   orient express   black doctor   clues   hercule poirot character   reference to ty cobb   american   murder investigation   train   murder   suspect   butler   knife   revenge   five word title   voice over   surprise ending   investigation   gun   stabbed in the back