 Freelance photographer Roger Byrd takes telephoto pictures of oil wildcatter Charles Houston pushing a car over a cliff with his wife Evelyn in it. Houston pays Byrd blackmail, then offers a share in a prospective well, but Byrd refuses. Houston then sells big time gambler Lucky Sterling 50% of the action to pay off Byrd. Byrd double-crosses Houston and sells the incriminating photos to Paula Wallace, Evelyn s sister, who intends to pay Byrd with money from her 50% of Houston s well. Paula consults Perry Mason. Incredibly, the 200% oversold wildcat well comes in a huge producer. Charles flees and is found dead in Byrd s apartment by Paula, shot with Evelyn s gun. Paula is charged with murder, and Perry has to sort things out.