Split

This psychological horror movie from M. Night Shyamalan takes you deep into the twisted psyche of a madman. Kevin Crumb is suffering from dissociative identity disorder, a mental illness that has given him 23 distinct personalities. Scarred by childhood trauma, Crumb kidnaps three teenage girls and holds them hostage in his underground bunker. As Crumb's personalities - and his psychiatrist - battle for control of his body, the lives of his victims hang in the balance. But a 24th personality is growing within him, and it may be the most evil of them all. Split is a fast-paced, relentless, and incredibly creepy movie. Actor James McAvoy manifests multiple personalities in amazing ways, and Sixth Sense-director Shyamalan is in rare form.