A college economics professor's "radical" ideas about capitalism get him fired. When he decides to put those ideas into practice, he finds that they actually do generate him huge amounts of money. Soon a local banker and others who scoffed at his ideas see the amount of money he's making and try to cheat him out of his system.

At Phwitterby-on-Thames, England, a murder has occurred and Philo Holmes and Dr. Watkins are out to investigate it. It seems as though there was a second will and changes have been made as to who will receive what. Philo is the ace detective, and he brings everyone from the nightclub to see him solve the case.

A philosophy professor accompanies his school's rowing team on a worldwide tour.