Perry Mason - Season 9 - Eps 13: The Case of the Baffling Bug
Tryon Laboratories hires the Drake Detective Agency to protect their latest formulas. In spite of Paul's best efforts, there is a leak in security and some top-secret information is stolen. One night, Leigh, an undercover agent working for Dr. Scranton, the head of the company, calls to say he knows the identity of the spy. Scranton and Paul rush to the laboratory only to find Leigh dead, floating in a vat of water.
About Perry Mason

Title: Perry Mason
First Air Date: 1957-09-21
Last Air Date: 1966-05-22
Status: Ended
Rating: 7.7/10 (from 123 votes)
Language: EN
Seasons: 10
Total Episodes: 271
Network: CBS
Genres: Mystery, Drama, Crime
Production Companies: Paisano Productions, TCF Television Productions, CBS
Synopsis
The cases of master criminal defense attorney Perry Mason and his staff who handled the most difficult of cases in the aid of the innocent.
Cast

Raymond Burr
Perry Mason

Barbara Hale
Della Street

William Hopper
Paul Drake

William Talman
Hamilton Burger

Ray Collins
Lieutenant Tragg