The Case Of The Angry Mourner from Perry Mason aired November 2, 1957. Perry Mason by Erle Stanley Gardner, a civil rights lawyer turned author, was the master of American mystery fiction. His mysteries contain intricate and challenging plots full of surprises, whodunits in the best tradition. 85 of his 146 books feature Perry Mason. The fictional attorney became the basis of a popular TV series, achieving an enviable record for winning his cases. At the height of his popularity Gardner was selling an average of 26,000 copies of his novels a day. In The Case Of The Angry Mourner notorious playboy Arthur Cushing is murdered, Belle Adrian suspects that her daughter, Carlotta, is the killer, and Carlotta suspects her mother of the crime.