Mrs. Davis is a deeply silly show deeply committed its silliness. And that's precisely what makes it so much fun. The new Peacock series from Tara Hernandez (The Big Bang Theory) and Damon Lindelof (Lost, The Leftovers), pits a nun with a mysterious past against an all-powerful, seemingly omniscient artificial intelligence. Her mission: to find the Holy Grail. You know, another one of those stories.

How can something understood as the universal symbol for joy so easily become the makings of our worst nightmares? Unhappy, unsettling smiles--like those in Todd Phillips' Joker or the truly chilling masks donned by Ethan Hawke in last year's The Black Phone--appear here to stay as fixtures of the horror genre. Paramount's new flick, directed by Parker Finn, makes the concept its very premise, with the movie following a psychiatrist plagued by smiles everywhere she turns. Baseball fans got a taste of her strife thanks to a stunt marketing campaign for Smile featuring actors smiling creepily behind the dugout. Whereas the 2018 horror film Truth or Dare used CGI to stretch the smiles of the actors like a Snapchat filter befitting the uncanny valley, the smiles in Smile for the most part do not appear digitally modified, by my estimate.

A unit of Hitachi Ltd. will launch a new venture that uses artificial intelligence to analyze the leftovers of carefully planned hospital meals to ensure patients get the nutrients needed to better facilitate recovery, company officials said Monday. While AI is already being used to calculate calories and nutrients in meals from images taken before people eat, using AI to analyze leftovers from images is rare, according to officials at Hitachi Solutions Create Ltd., which is set to start the business by the end of March 2019. Hospitals prepare meals to accommodate each inpatient's medical needs, but if inpatients fail to eat them completely they may not recover from their illnesses or injuries as expected. To avoid a stalled recovery, the Tokyo-based firm plans to have AI learn what kinds of food or ingredient each patient tends to avoid and help hospitals come up with alternatives to make up for the missed nutrition. The company has already begun testing the system at a major hospital in Japan by taking images of leftovers on trays with cameras installed on trolleys.

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