Please answer the following question about this movie plot. If it's un-answerable, please output "No answer". Question: Who was murdered at about 1:15 a.m? Movie plot title: Murder on the Orient Express Movie plot: Detective Hercule Poirot (Albert Finney) is returning to England aboard the Orient Express, encountering his friend Signor Bianchi (Martin Balsam), a director of the Compagnie Internationale des Wagons-Lits, which owns the line. Aside from Poirot, the other passengers travelling on the Calais coach are: Mrs. Harriet Hubbard (Lauren Bacall), a fussy, talkative, multiple-widowed American; enigmatic American businessman Samuel Ratchett (Richard Widmark), his secretary and translator Hector McQueen (Anthony Perkins) and English manservant Beddoes (John Gielgud); elderly Russian royal Princess Natalia Dragomiroff (Wendy Hiller) and her German maid Hildegarde Schmidt (Rachel Roberts); Hungarian diplomat Count Rudolf Andrenyi (Michael York) and his wife Elena (Jacqueline Bisset); British Indian Army officer Col. John Arbuthnott (Sean Connery); Mary Debenham (Vanessa Redgrave), a teacher of English in Baghdad; Greta Ohlsson (Ingrid Bergman), a timid Swedish missionary to Africa on a fund-raising trip; Italian-American car salesman Antonio Foscarelli (Denis Quilley); and Cyrus B. Hardman (Colin Blakely), an American theatrical agent. The morning after the train's departure from Istanbul, Ratchett tries to secure Poirot's services for $15,000 since he has received many death threats, but Poirot finds the case of little interest and turns it down. That night the train is caught in heavy snows in the Balkans. Poirot is disturbed numerous times during the night. The next morning Ratchett is found stabbed to death in his cabin. Poirot and Bianchi work together to solve the case. They enlist the help of Dr. Constantine (George Coulouris), a Greek medical doctor who was travelling in another coach with Bianchi as the only other passenger and thus is not a suspect. Pierre Michel (Jean-Pierre Cassel), the French conductor of the car, also assists the investigation, as well as being a suspect. Dr. Constantine's examination reveals Ratchett was stabbed 12 times. Some wounds were slight, but at least three of them could have...
A:
Ratchett