Split is a psychological horror-thriller film directed by M. Night Shyamalan. Anya Taylor-Joy stars as Casey Cooke, a young girl who becomes one of the captives of a man with dissociative identity disorder, played by James McAvoy. As Casey tries to survive and understand her captor's multiple personalities, she uncovers a dark secret that connects them all. With its intense suspense and Anya Taylor-Joy's compelling performance, Split is a gripping and chilling film that keeps viewers on the edge of their seats.