The Mystery of the Homeless Man

Why would an airline pilot leave his comforts for a life on the streets? What secret lies behind his death?
When the SeeMs Detective Agency are employed to discover why a house won't sell, they find an unknown man, apparently murdered in the small house in a woodland village. Who killed him and why was he there?
Miranda remembers that in 2006 she met an itinerant in the wood. When she took him home he refused to stay, desperate to return to the streets. Is this the same man, fifteen years later?
No one knows who the dead man is or how he died, and, with one hundred and fifty unidentified street deaths per year, no one has time to find out. But, the SeeMs Detectives have both time and a client.
Their investigation takes them into a surprising world of aviation, night-clubs and the homeless.
What they discover threatens one of their team. Can they save their colleague before the homeless man's killer strikes again?