Debido a un trauma de la infancia, Kevin (James McAvoy) sufre trastorno de personalidad múltiple (dentro de él conviven 23 identidades diferentes). Entre ellas, la de Barry, un aspirante a diseñador de moda; Dennis, un obsesivo-compulsivo; Hedwig, un travieso niño de 9 años y Patricia, una mujer de gran autoridad.... El problema surge cuando la personalidad asociada a Dennis, secuestra a tres adolescentes, manteniendolas en un búnker subterráneo y sujetas a las distintas personalidades de su captor. While the mental divisions of those with dissociative identity disorder have long fascinated and eluded science, it is believed that some can also manifest unique physical attributes for each personality, a cognitive and physiological prism within a single being. Though Kevin has evidenced 23 personalities to his trusted psychiatrist, Dr. Fletcher, there remains one still submerged who is set to materialize and dominate all the others. Compelled to abduct three teenage girls led by the willful, observant Casey, Kevin reaches a war for survival among all of those contained within him - as well as everyone around him - as the walls between his compartments shatter apart. RATINGS: IMDB: 7.4 METASCORE: 62/100 TOMATOMETER: 75% INFORMACION ADICIONAL: - CALIDAD DE AUDIOS: INGLES 5,1 INGLES 2.0 (Comentario del director) ESPAÑOL LATINO 5.1 FRANCES 5.1 - EDICION Y MENU ORIGINALES - PG-13 (Sugiere la compañía de un adulto para los menores de 13 años) - GENEROS Y SUBGENEROS: Thriller. Intriga | Thriller psicológico. Secuestros / Desapariciones. - SCREEN: Widescreen BONUS: - DELETED SCENES - THE MAKING OF SPLIT - THE MANY FACES OF JAMES McAVOY - THE FILMAKER'S EYE: M. NIGHT SHYAMALAN