One night. A night that will decide a lot for the passengers of the legendary Orient Express, traveling from London to Venice. Each of them has special hopes for this journey. Archie and Emmy try to forget the past and start a new life. Imogen goes to collect a priceless painting that her grandmother gave her. Simon, who has gone through a difficult divorce, wants to introduce his new girlfriend to children who judge them in advance. And Riley and Sylvie - a famous photographer and actress - take this train on Sylvie's birthday year after year... But this time Riley is preparing a special surprise for her. Four couples. Four stories. And just one night that will change their lives...