Jurisdiction

If one had an auto accident in Illinois and the Plantiff and the defendant were both from the state of MO, could the plaintiff bring forth the case in State Court in MO or would he have to bring the case to IL or District Court. The case amount would be over $75 K but I do not think there would be diversity of citizenship. So my question is where could the plaintiff file his complaint? In state court in MO, state court in IL or District Court in MO or IL? Who would have jurisdiction over the case? Who has jursidiction over subject matter?