The scion of a famous New York art-dealing family, Georg Khalkis spent his final years housebound with blindness until he died of a heart attack. After his funeral, his will mysteriously vanishes. Following a thorough search, Inspector Richard Queen's son, Ellery, suggests checking the coffin, where they discover not one, but two corpses.

When the second body is identified as an ex-convict, it becomes clear they have a murder case on their hands with links to the art world and a da Vinci forgery. It's up to young Ellery Queen to solve the case in "a lively and well-constructed yarn containing unusual setting, ingenuity of plot, a surprise solution and legitimate use of the analytico-deductive method" (New York Herald Tribune Book Review).