A man commits suicide beneath a tree in a London park. He has no identification and is completely untraceable. The coronor's report indicates the dead man is 60 years old even though his physical appearance makes him appear to be in his 20s.
Two men, one woman: three extraordinary agents challenged by the impossible, fuelled by injustice and entwined by intrigue. When the case is a puzzle, Department S finds the missing pieces dealing with Interpol's most unsolvable cases.