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In order to get rid of her husband Bruce's mistress Roxy Howard (Greta Thyssen), Sybil Granger hires Perry (Raymond Burr) to secretly help her gain a majority financial interest in Bruce's oil company. But someone else is apparently aware of what Sybil is up to, and that someone is old George Lutz (Richard Hale). After catching Sybil spying on Roxy, George is shot to death. Inasmuch as Sybil is already his client, Perry assumes the task of clearing her of a murder charge. This episode is based on a 1955 novel by Perry Mason creator Erle Stanley Gardner.