 The Other Celia follows Slim Walsh as he discovers the mysterious activities of Celia Sarton, one of his rooming house neighbors. Driven by curiosity, Slim pokes a small hole through the floor of his closet, allowing him to see into Celia s room. Witnessing Celia preform a bizarre transformation, Slim comes to the realization that she s unlike anyone he has ever known. He takes it upon himself to discover as much as possible about this strange being.