A tiny piece of microfilm was stolen from the government building and Tom Shackle, investigator at the government building, was determined to find both the thief and the stolen merchandise.The thief, Louie Barden was also determined to find the microfilm. Thinking how clever he was, he put the tiny piece of microfilm in the unusual place which to his dismay brought him only headaches, sore feet, and a wish to know less about Siamese cats.