The blurb says this is Gardner's 100th book, though it is not his hundredth Perry Mason story. A young woman is given a ride on a rainy night by the son of the owner of the company she works for; they end up at his place, and he attempts to make a pass at her. She manages to steal his car and escape. However, he turns up dead, and Perry Mason has to defend her. I believe this was one of the first Mason mysteries I read, finding it in my parents' collection. . ( )