Perry Mason turns hotter than a fire cracker when he takes on the case of Arlene Duvall whose trailer has been robbed. Her father in jail for the theft of a money shipment, she leads Mason into murder, the charge of perjury before a jury and straight into the wrath of the District Attorney, Burger. But Mason, foxy and fast, outthinks and outtalks his opposition to a complete win. Speedball.