Eighth graders, Ben, Jake, and Leah need cash, and mowing lawns in the winter just isn't cutting it. Their need for cash births the Liarus (Liars R Us) Detective Agency! Their first client is Old Lady Smitz, who is said to have murdered her three sons and husband. She's missing a family heirloom, but it's not just any old trinket, it's the crest of Lykoi. There are only two rules: No girls are allowed and never seal a deal with the witch doctor. Disregarding danger, these three discover that money is usually more trouble than it's worth!