Maxime, who was a last minute addition to the guest list broke off his engagement because he felt Rowena did not approve of him and that Alicia was obsessed with keeping her happy; and Nicholas and Desdemona, both Romani refugees, have been stealing from Joyce and intend to use the money to travel to St. Louis, Missouri, which they fell in love with after seeing the first half of the film 'Meet Me in St. Louis' at a displaced persons camp.
Shortly after, the guests come across a previously hidden basement containing the skeletal remains of the dead children, and Leslie suffers a panic attack and nearly kills Maxime. He is locked inside the music room to recover, with Rowena handing Poirot the only key. After examining Maxime's invitation, Poirot deduces Oliver sent it and that she and Vitale conspired to bring him to the palazzo. Vitale explains he investigated Alicia's death and fished her out of the canal, while Oliver admits she hoped to use Poirot's incapability of explaining the seance as a plot for her next book. Leslie is soon afterward found stabbed to death in the music room to which Poirot had the only means of access.
Poirot brings the remaining guests together, and exposes Rowena as the murderer. She was obsessed with keeping Alicia to herself and, after learning she planned to reconcile with Maxime, used honey extracted from poisonous rhododendron blooms to weaken her, using small doses at a time. When Olga unknowingly gave Alicia tea containing a large fatal dose, Rowena staged Alicia's suicide to prevent exposing herself. When she began receiving blackmail threats, Rowena suspected either Joyce or Leslie. She pushed Joyce to her death after mistakenly attempting to drown Poirot and forced Leslie into stabbing himself via the palazzo's internal phone line, threatening to kill Leopold if he refused. Rowena flees to the roof garden in an attempt to escape, followed by Poirot, but Alicia's ghost seemingly appears from behind and pulls Rowena down, causing her to fall to her death in the canal below.
Come sun up and the case cracked open in a few short hours, Poirot bids goodbye to Oliver, elects not to turn Vitale in to the local Police for his involvement in the seance, and privately exposes Leopold as the blackmailer. Leopold explains he understood the poisoning signs his father missed and made the connection after realising Rowena's first starring role was in an opera whose lead character was known as the 'king of poisons'. Poirot suggests to Leopold and Olga that to clear their consciences they should use the blackmail money to help Desdemona and Nicholas start a new life in St. Louis before returning home to accept a new case.
Three Agatha Christie big screen adaptations in, and Director and lead Actor Kenneth Branagh has more than settled in to his routine of bringing Hercule Poirot to life, with all his eccentricities and idiosyncrasies firmly intact. Branagh has crafted a solid enough film here that is sure to please those that enjoy a good whodunnit, Venice is shot beautifully, the cast is more than up for the task, and this Gothic inspired supernatural thriller for me sits between 'Murder on the Orient Express' and 'Death on the Nile' that offers the audience a more grounded view of Poirot's methods of deduction, even if at times it defies logic. All within the space of four of five hours Poirot is able to solve not one, not two, but three murders and tie up a whole bunch of loose ends very neatly before moving on to his next case before breakfast - if you can believe it!
'A Haunting in Venice' merits three claps of the Odeon Online clapperboard from a possible five claps.
-Steve, at Odeon Online-