 Bedridden Louise Gordon (Susan Dorn) believes her husband George (Edward Norris) is having an affair with Charlotte Lynch (Fay Spain), and will not allow him into her room. Only her friend Vicky Braxton (Mary LaRoche) and nurse Nora Mae Quincey (Lenore Shanewise) may see Louise. Suspecting trouble in the household, Nora Mae consults Perry Mason. When Louise dies of arsenic poisoning, Nora Mae is charged with murder.