Join fourth-grade detective Molly Jane Fisher and the gang as things go from crazy to crazier along the road to solving the latest mystery! The two sassy and amazing guinea pigs, Teddy and Pip, are convinced that monsters are tapping on the windows of their once-perfect little house, and all they want is to pack up the boxes and move away. On the other hand, Molly is ninety-nine percent sure that this latest Taylor Drive mischief is the work of the neighborhood bully, Benny Nubb. All she needs is some proof, and that mean boy will get in trouble with his mom and the tapping will stop. But getting that proof is harder than Molly thought it would be. For one thing, Benny Nubb seems to be everywhere, watching Molly's every move. Add to that problem two unreasonable guinea pigs, absent parents, Max's new girlfriend, a huge thunderstorm, a State Fair project, the worst spot in the whole gym, an unreasonable Nora, and no ideas for winning a ribbon - it's enough to drive anyone cuckoo! On the bright side, Tweets seems to have all the answers. But everyone knows that you can't put a parakeet on the witness stand.