After inventor James Frazer tells his wife Thelma who is visiting his lab he knows she is cheating, he disappears for nearly three months. Thelma asks her friend Lois Langley to join her on a day out but first stops at her husband's business to visit some co-workers which Lois notices through the windows. James' business partners, Robert and Arthur Hayden, decide to exercise a buyout clause in their business agreement so Thelma Frazer, who has had no contact with her husband, consults Perry Mason. As it happens, James returns only to find his workshop ablaze and Thelma's dead body inside. He's charged with murder and Perry takes on his defense. James was working on an aircraft anti-collision device and had gone away so as to complete his work. It had also become obvious to him that someone had access to his workshop and suspected that someone was stealing his ideas. Not surprisingly Thelma's lover, Calvin Boone, had also produced an anti-collision device that is virtually identical to...
Did You Know?
This episode marked the return of William Talman in the role of Mason's nemesis D.A. Hamilton Burger - he had been fired from the series following his arrest on a morals charge. Both Raymond Burr and the series' executive producer Gail Patrick Jackson had intervened with CBS, which produced Perry Mason, to argue for Talman's return. See more
During the initial courtroom scene at about 33:26 Della is wearing one outfit with a brooch on her left shoulder. At about 34:50, during the same courtroom scene, she's wearing a completely different outfit minus the brooch. Her hair also appears straighter/less curly than it was with the first outfit. Later, at about 35:16 (again same courtroom scene), she's back in the original dress shown at the beginning of the scene with the brooch on the left shoulder and the curlier hair. See more
You're home early.
Where are you going?
Where have you been all afternoon, Thelma?
I had lunch with Lois. I told you.
You didn't have lunch with her.