At the Devil's Ball

A minister has been murdered along with his paramour, their bodies found in the basement of church's residence. The preacher's wife is missing. Gabrielle Walsh, a former traveling evangelist, knew both the preacher and his wife. A year after the man's demise and the woman's disappearance, a "man" surfaces in a neighboring community operating a "spiritualist camp", where "he" offers to contact dead loved ones. Gabby knows the medium is the missing wife. Gabby agrees to assist the police by going undercover to try and apprehend a murderess.