Missouri Revised Statutes Title XXXV. Civil Procedure and Limitations § 511.170. Petition for review, grounds

When such interlocutory judgment shall be made and final judgment entered thereon against any defendant who shall not have been summoned as required by this chapter, or who shall not have appeared to the suit, or has been made a party as the representative of one who shall have been summoned or appeared, such final judgment may be set aside, if the defendant shall, within the time herein limited, appear, and by petition for review, show good cause for setting aside such judgment.