A married airline pilot is found dead in his London flat, surrounded by shards of glass and the shattered remains of a champagne bottle. But who was the man seen with the pilot on the concourse of Heathrow airport

Private investigator Billy Rucker joins the case at the request of the pilot's brother, a well-known Tory MP. For Rucker it's the start of a long lonely trail through the city, clutching a grainy black and white photo and a gnawing suspicion in the pit of his stomach…