John Skillpa, a quiet bank clerk living in tiny Peacock, Nebraska, prefers to live an invisible life. Then, in a moment, everything changes. A train caboose runs off its tracks and crashes into John's backyard and destroys more than the weathered planks of his wood fence. When neighbors descend on the scene, they discover John's other personality, Emma, for the first time and mistakenly believe her to be John's wife. John is launched into the spotlight and eventually it shatters his sanity.