Includes THE CASE OF THE POISONED PIN and THE CASTE OF THE DESPERATE DECEPTION. Mason (Raymond Burr) must use any clues he can to solve the whodunit. It won't be easy when multiple attendees were either a former friend or current enemy of the writer, who was known to plagiarize often. Perry defends the main suspect, who happens to be the ex-wife of the victim, as well as a friend of Della (Barbara Hale). The Case of the Desperate Deception: Perry Mason (Raymond Burr) takes to Paris after an accused former SS officer is murdered and the prime suspect is an old friend's son. The case becomes more complicated as secrets that have been hidden for half a century are finally revealed. Ken Malansky (William R. Moses) tags along to gather clues and uncover the truth behind a mystery that spans decades.