started plotting out a new book today

it's a very complex book so I can't just do what I normally do and make it up as I go along, it has to be plotted out to keep track of the characters, events and situations. it has some similarities to a soap opera, in that its set in one street and its about the people who live there, but considering two of them are aliens who make things out of house hold objects and own their own UFO, it's not exactly the same thing.