A mysterious young woman, Dorrie Ambler, wishes to prove her identity to Perry Mason. She wants him to witness her appendectomy scar, claiming she has a double. The double turns out to be Minerva Minden, madcap heiress of Montrose. Mason has his work cut out for him when his investigation leads him to a dead man in an apartment building.

"A widow in distress, her attentive, very wealthy swain, and his overly-protective nieces and nephews provide Perry Mason with one of the most challenging cases of his brilliant legal career. It all began when the attractive Mrs. Anson came to Perry Mason for advice on how to handle a shadow-- a real, live shadow, that is. Mason figured that where there was a shadow of any description, there was substance. The point was how much substance, and what...

An amateur photographer is killed, and the beautiful young model he was capturing in the eye of his camera disappears. Perry Mason and his crew try to solve the mystery before it becomes a case of murder-by-month.