When Iris's mother goes away on vacation, Iris (normally the perfect straight-A, top athlete, overachiever daughter) makes one uncharacteristic and fateful decision to go out on a date with Foster. And it's all downhill from there, as the house, the car, and the friendships all take a beating, and Iris striggles with huge dogs with agressive bladders, leaky diapers, and a babysitter who saves the day again and again, even though she's younger than Iris.
It's got wit and it's got funny moments. The writing is funny and the situations just keep piling up, but there isn't much character development going on here and that may leave folks a bit disappointed. It was a quick read, but I found myself getting lost and not quite understanding the motivations that drove Iris to make some of the decisions that she makes. She's a strong heroine but a not-all-that-believable one.