Watch Perry Mason Season 5 • Episode 20 The Case of the Poison Pen

Perry Mason must determine whether word of a planned business merger was leaked through the letters of two little girls.. Where to watch Perry Mason - Season 5 • Episode 20 - The Case of the Poison Pen-Pal free starring Raymond Burr, Barbara Hale, William Hopper and directed by Arthur Marks.

"Perry Mason" The Case of the Poison Pen-Pal (TV Episode 1962) - Cast and crew credits, including actors, actresses, directors, writers and more.. A casual pen pal relationship leads to insider information and murder.