One sunny afternoon, Nick Price took a stroll through Lumpini Park in Bangkok with his family and friends. At some stage, a joke was cracked, he laughed and placed a hand, intimately, on a young man's shoulder. The event was unremarkable, except that twenty years later a witness testifies that the young man had been Khun Sa, the legendary drug lord from the Golden Triangle.Set against the backdrop of civil unrest in Bangkok in May 1992, DCI Jack Magee visits Thailand to explore Nick Price's murky past in the hope of identifying Khun Sa, unaware that he has been set up by the intelligence services like a goat to catch a tiger.