From Amazon Vine's description, I had no idea that this was the first of a trilogy featuring ex-cop and now PI, Jack Nightingale.  Or that it had actually been published in the UK a couple of years ago, or that the second and final novels were also out in the UK (but not available through Amazon in the US).  But no matter, Nightfall was exactly as advertised  - the story of how Jack discovers that his father had sold his unborn son's soul to a devil who would come and collect on his 33rd birthday.  Naturally,  Jack is not happy about this and does his best to stop this from happening as (almost) all his friends and family are dropping like flies all around him in the days leading up to his 33rd.