Frank Dorrance was found strangled in the middle of wet sand tennis court surrounded by a wire cage. There are no footprints other than his own and some others demonstrated to have been made long after the murder around his body. Dr. Gideon Fell has to figure out not only who the murderer is, but how it was done as well.
Suspects include Dorrance's fiancÚ, Brenda White, who is in love with another man; Hugh Rowland, the other man; a young woman who has been having an affair with Dorrance and an old boyfriend of hers.
When the boyfriend, who is an acrobat, is shot in a theatre after it is suspected that he has photographs of the murder, Fell has a second killing to solve.
This report prepared by Jack Goodstein