Split.

Betty Cooper thought the worst thing in the world was being forced to go to Veronica Lodge's birthday party. Which is like stepping back in time to when she was a kid. It turns out she’s wrong however, when the birthday girl’s ride home is hijacked by a psychopath with multiple personalities, one being a mad scientist, eager to test the laws of human physics on Veronica’s party guests. Whether they're willing or not.Betty finds herself in a race against a time while her friends are picked off one by one, succumbing to cruel experiments as the man attempts prove the existence of the supernatural. Along with Jughead Jones, a kid she's been crushing on for a while, whose also been thrown into this nightmare, the two of them try to persuade one of the personalities; an eight year old boy named Nick, who slips through sometimes, to let them go. Before they too are turned into human guinea pigs.