The Manhattan Project

Dr. John Mathewson discovers a new process for refining plutonium to purities greater than 99.997 percent. The United States government provides him a laboratory located in Ithaca, New York, masked as a medical company. John moves to Ithaca and meets real estate agent Elizabeth Stephens while searching for an apartment. He attempts to win the affections of the single mother by inviting her teenage son Paul to take a tour of the lab. John is confident in the lab's cover story but Paul, an unusually gifted student with a passion for science, becomes suspicious when he discovers a statistically impossible patch of five-leaf clover on the grounds.