 After funeral services for Louise Holbrook, her daughter, ten million dollar heiress Tracy, meets a man who claims to be her father, long gone Jay Holbrook. The family head, old Cousin Lawrence King, is blind and cannot identify Holbrook. King hires detective, Peter Sample, who finds another "Jay Holbrook" in San Francisco. Cousin Lawrence is found dead, and Trudy is seen running from the scene. She consults Perry Mason, telling him about a confrontation with King, but he was alive when she left. Holbrook #1 calls on Perry Mason to help Trudy, closely followed by Holbrook #2 with the same request. Trudy is arrested, and Perry takes the case.