Waitrose has launched its 2024 Christmas ad campaign titled 'Sweet Suspicion, A Waitrose Mystery', featuring a star-studded cast led by Matthew Macfadyen. The 90-second ad, directed by Lucy Forbes, presents a festive cliffhanger as a family prepares for Christmas, only to discover that their prized dessert has gone missing. The amateur detective, played by Macfadyen, embarks on a mission to find the culprit among various suspects, including a disgruntled grandma and a perfect hostess. This marks a departure from traditional Christmas advertising as Waitrose aims to keep customers engaged with a two-part thriller format that concludes with a reveal in the coming weeks. Nathan Ansell, Waitrose's Customer Director, highlighted the campaign's intent to surprise customers and add a fun twist to the holiday season. The ad also showcases a range of new festive food items, enhancing its appeal to viewers.