When a mother reports her child as having been abducted by a man and a woman masquerading as social workers, Banks is drawn into a strange and unsettling search for the missing boy.
Following the death of a journalist, Banks and his team discover connections to a suspicious death in the 1980s involving the surviving members of a pop band.
When Banks and Helen learn that Ian Basset has returned to the country, the surviving members of The Crystal Kiss are reunited, and the trio seem tighter than ever.