Glass serves as a sequel to two films from M. Night Shyamalan, 2000’s Unbreakable and 2018’s Split, the latter of which tied itself to the former with the post-end title stinger. Bruce Willis makes his return as the ‘unbreakable’ security company owner David Dunn, who, along with his adult son (and sole employee) Joseph, is trying to track down a crazy roaming the streets of Philadelphia who is abducting teenage girls. James McAvoy continues his portrayal of Kevin Wendell Crumb, aka The Horde, a conglomerations of split personalities that take over Kevin’s body at various points, including the homicidal brute known as The Beast, who is the one feeding on those girls David is looking for . Samuel L. Jackson also returns from Unbreakable as the titular character, the brittle mastermind self-named Mr. Glass, aka Elijah Price, who has apparently been laying low for some time under heavy sedation. The three end up rounded up and subsequently kept separate chambers within a high-security psychiatric facility led by Sarah Paulson’s Dr. Ellie Staple, whose specialty is in rehabilitating persons who believe they are superheroes. From Split, Anya Taylor-Joy returns as Casey Cooke, who survived her terror-filled first meeting with The Horde while in its persona as The Beast, but who finds herself drawn to help him escape his inner demons.