"Lady Killer" is about an insurance investigator and her hunches. The story begins as Peg Lincoln boards a plane for Capital City with a ticket she bought from a woman in the airport's lobby. Shortly afterwards, the flight's take-off is delayed, and Peg suddenly needs to be taken to the hospital. She believes that she was poisoned by Grant Benton, the charming man who sat next to her on the plane. He appears to have saved her life by getting her to the hospital so quickly, but was he the one who caused the harm? The police tell her that he is above reproach and that she is imagining danger where there is none.
Her instincts tell her that he is trouble, neverthless she allows him to drive her home from the hospital. Just before they arrive at her home, he runs over a pedestrian! He says it was an accident, but Peg thinks it was murder. Why would he want to hurt Peg or that pedestrian crossing the street?
"Lady Killer" is a tight radio drama with a suspenseful ending. Loretta Young, in her only appearance on Suspense, starred as Peg Lincoln. At the time, she was also appearing in the film Key to the City (1950) and had just received an Academy award nomination for the 1949 film Come to the Stable. Lawrence Dobkin, John McIntire, and Sydney Miller also appear in this episode. The radioplay was written by William Bruckner, who later wrote an episode for the tv series Letter to Loretta starring Loretta Young. "Lady Killer" aired on March 2, 1950.