Suddenly, mimes seem to be everywhere in Reckless River, Washington. Their antics amuse residents at first. Then street theater gives way to street crime. Fast, organized, and armed with cream pies, mimes avoid capture. And they baffle police by delivering stolen items to the cop shop.

Barbara Reed suspects the thefts are designed to frustrate and misdirect authorities, increasing the success of a major heist. Crime reporter Stan Stewart agrees, but his investigation gets nowhere. Mimes aren’t talking.

Barb would like to help track facts, but she has a bad cold and a new assistant principal is making her subbing life miserable. On top of that, Mrs. Ballantine is pushing her to set a wedding date, and she’s been guilt-tripped into helping at an outdoor holiday market.

When mimes set their big plan in motion, Barb and her tiny mutt Cheese Puff are in exactly the wrong place. Or are they?