The disappearance of eleven-year-old Icabum Plum's father was a sham, and the boy-detective refuses to be lied to again. After studying the skills of his movie idol, detective Sam Spade, for years after his father left his family, Icabum is confident he can see through any lie. Now, he uses his talents to search for the perfect case while stirring up trouble along the way.

It's spring break, and Icabum has a plan: -Ditch dad. -Sneak into a classic film festival. -Solve the contest. -Win the trophy and return home. What could go wrong? How about everything?