Based on Author, Glen Duncan's Bestseller. God is giving Satan a last shot at redemption; Satan must live out a blameless life as a human. Slick negotiator that he is, Lucifer negotiates a 'try before you buy' period. 1 Month. London. He has no intention of taking God up on His offer. Lucifer simply wants to put a body through as much drug, sex and other multiple vice excess as possible in a month. But inhabiting a human body gives rise to feelings the Ol Devil never thought possible...could he just possibly want to take God up on the offer after all?