If you're referring to the 2019 psychological horror film "Glass" directed by M. Night Shyamalan, here's a brief story overview:
"Glass" is the third installment in Shyamalan's Eastrail 177 Trilogy, following "Unbreakable" (2000) and "Split" (2016). The story revolves around three characters with unique abilities:
1. **David Dunn (Bruce Willis):** A security guard with superhuman strength and an ability to see the crimes people have committed by touching them.
2. **Kevin Wendell Crumb (James McAvoy):** A man with Dissociative Identity Disorder (DID) and 23 different personalities, one of which is a superhuman, cannibalistic entity known as "The Beast."
3. **Elijah Price/Mr. Glass (Samuel L. Jackson):** A highly intelligent comic book art dealer with a brittle bone disorder, who is revealed to be the mastermind behind several orchestrated events.
The film begins with David Dunn pursuing Kevin Wendell Crumb, who has kidnapped a group of cheerleaders. The confrontation catches the attention of authorities, leading both of them to be captured and taken to a psychiatric facility, where Elijah Price is also held.
Dr. Ellie Staple (Sarah Paulson) is introduced as a psychiatrist who specializes in treating individuals who believe they have superhuman abilities. She attempts to convince David, Kevin, and Elijah that their abilities are merely delusions. However, as the characters interact, the true extent of their powers becomes more evident.
Elijah, who prefers to be called Mr. Glass, orchestrates an escape with Kevin, intending to unveil the existence of superheroes to the world. The film culminates in a showdown between David, The Beast, and Mr. Glass in the facility's courtyard. Dr. Staple's true intentions are revealed, and the characters' destinies are shaped in a way that challenges perceptions of heroism and villainy.
"Glass" explores themes of identity, belief, and the consequences of extraordinary abilities in a world that often rejects the extraordinary. It's known for its twist ending, characteristic of Shyamalan's storytelling, which adds a layer of complexity to the narrative.