Cody James is a sixteen year old California native who is allergic to the rain. Unfortunately for him, due a mix up at the agency which was in charge of planning his summer working abroad, he's ended up au-pairing in rainy London for the affluent Darlington family, complete with adorable little girl and sex god big brother. However, from day one Cody notices that there's something strange about the Darlingtons, and it's not long before he figures it out...