Dr. Nick: Speaking of soul-splitting along personality component lines, the 2020 science fiction film Minor Premise features a fascinating take on the same basic concept. The main character, neuroscientist Ethan, doesn't accidentally remove anything from himself, but he does fracture his consciousness into ten different aspects, each of which has control over his body for six minutes at a time. The rest of the film then turns into this big race of putting Humpty Dumpty back together again before it's too late to revert the damage.
