Can an almost perfectly planned crime be solved? That question is answered in this classic mystery by one of the early 20th Century's most popular, fictional medical detectives, Dr. Thorndyke.

Sandwiched between the Sherlock Holmes mysteries of Sir Arthur Conan Doyle and the whodunnits of Agatha Christie are R. Austin Freeman's "whocatchums." Freeman pioneered the concept of the inverted detective story, in which the whole crime is explained before the investigation.