Based on volume 1 from TokyoPop:

Trouble seems to follow aspiring detective Jasmine Callihan. Or maybe it's that Jas (who apparently never learned what Curiosity did to the Cat) follows trouble.

All Jas wanted to do today was hang out with her pals (and her superfantastico boyfriend, but, shh, don't tell The Thwarter, aka, her dad, who's trying to keep her under permanent lockdown). Simple. Straight forward. But catastrophe was lurking. First Jas stumbles upon a school mate's lost purse. Then there's the jewelry store heist, the wrongly accused man, the clueless cops, the seven words that destroy her relationship and…well, before she knows it, Jas has got a lot more than brunch on her plate.

Now it's up to her, and her mega-cool crew, Roxy, Polly and Tom, to catch the thief. It won't be easy—not with Jas' cousin Alyson and her Evil Hench Twin Veronique tagging along for the ride and having to elude the Thwarter with his All-Seeing Eye. Oh, and her heart breaking into a million tiny pieces.

Trying to right wrongs and have brunch with a hot guy shouldn't be this taxing, should it?