What if you have a bunch of old, unnecessary things accumulated at home, but you can’t throw them away? Yes, just take them to the fair: see people, show yourself, and even earn some good money. This is what inseparable friends Holly, Pete and Miranda do, and everything would be fine, but the trouble is: one of the buyers paid with a counterfeit bill! Who is this mysterious intruder? A strange guy in a brand new suit and for some reason wearing worn out shoes? Or such a decent-looking elderly couple? Or... “Or it’s time to tackle another mystery!” - the trio of young detectives says to themselves and enthusiastically gets down to business. Armed with a camera, the guys set off to track down the criminals - and they can’t believe their eyes...