Julia Branner insists her marriage was sabotaged by her millionaire father-in-law, who forced her to give up her baby girl for adoption. Now, years later, a young woman appears, claiming to be Julia’s long-lost daughter. But Julia insists the heir - apparent is a fake - and vows to keep the family fortune from falling into the wrong hands.

Abetted by a bishop with questionable credentials, Julia plans to expose the imposter. But things take a devilish turn when the curious cleric vanishes and Julia’s father-in-law is murdered. Charged with the killing, Julia turns to Perry Mason. But with overwhelming odds against him, Perry may not have a prayer…