Answer
The answer is "Split". The narrative in "Glass" intertwines with the storylines from the movies "Unbreakable" and "Split". In "Unbreakable", a security guard named David Dunn discovers he is invulnerable, while discovering the existence of a serial killer named Elijah Price, who is extremely fragile. In "Split", a man suffering from a mental illness exhibits 23 distinct personalities and kidnaps three girls.