Suppose you gambled with embezzled money and won big at the track, but when you went to collect your winnings, your boss had you arrested and took the money! Now suppose you suspected you had been set up—would that make you mad enough to commit a murder?

She was a nervous brunette, in a hurry. She handed Perry Mason five $100 pari-mutuel tickets on Dough Boy, and asked him to collect. As Mason was checking the take, sure enough, the law showed up...