The legs in question in this the second of Warner Bros. Perry Mason whodunits belong to Margy Clune (Patricia Ellis), the first-prize winner in a Lucky Legs contest and the fiancée of Dr. Bob Doray (Lyle Talbot). But when Margy goes to collect her winnings, she finds that the contest's promoter, Frank Patton (Craig Reynolds), has skipped town with the money. When Margy goes after him, her boss, Bradbury (Porter Hall), convinces Perry Mason (Warren William) that she may be heading for trouble. And, sure enough, Patton is found very much murdered with Margy the prime suspect. But as Mason, his secretary Della Street (Genevieve Tobin), and intrepid private eye Spudsy Drake (Allen Jenkins) discover, there are other and more dangerous suspects around. The Case of the Lucky Legs was followed by The Case of the Curious Bride (1935) and The Case of the Velvet Claws (1936), also with Warren Williams as Mason, after which the role would be played in the remaining films by three different actors: Ricardo Cortez, Donald Woods, and William Lundigan.