Hugo Duchamp Investigates: The first trilogy contains the first three books in the series following Hugo Duchamp, a Frenchman living and working as a policeman in London who is about to have his world turned upside down. In the first investigation, un homme qui attend, Hugo is called upon to return to his native country where he has not been for over a decade and finds himself embroiled in the murder of a child and a town ripe with corruption, warned not to investigate the first murder he soon has no choice when a second child is murdered. The second investigation, Les Fantômes du Château, picks up soon after the explosive events at the end of his last investigation and finds Hugo Duchamp back in Montgenoux still reeling from what happened and haunted by the guilt he feels, but before long he is called upon to investigate the brutal murder of a maid at a local Château and he finds himself in the middle of a family at war and a murderer who will stop at nothing to protect their own interests. The final investigation in the trilogy, Les Noms Sur Les Tombes, begins with Hugo's new home town Montgenoux in turmoil. Dr. Irene Chapeau finds her career at stake and the race for the election of a new mayor heralds the return of some shady characters from the past. Meanwhile, Hugo battles to overcome the injuries he sustained in his last investigation and soon finds himself embroiled in a shocking series of murders that seem to originate in Montgenoux's ancient graveyard.