Missouri Revised Statutes Title XXX. Domestic Relations § 452.170. Petition for enjoyment of spouse's separate estate, when

If any married person shall hold real estate in his or her own right, and his or her spouse, by criminal conduct toward him or her, or by ill usage, shall give him or her cause to live separate and apart from him or her, such person may petition the circuit court, setting forth such facts, and therein pray that such estate may be enjoyed by him or her for his or her sole use and benefit.