In the winter of 1924, Daisy Dalrymple Fletcher travels to a school friend's house to witness the estate's famous Guy Fawkes celebration. But she gets more than a quiet weekend. The home is the site of some severe family tension - the Viscount and head of family is a strict and unyielding sort, insisting that everyone meet his own unreasonable expectations. On the evening of the Guy Fawkes celebration, the Viscount is found dead on the floor of his study, killed by his own hand. What's more, he apparently first killed a guest, before turning the gun on himself. Now it's up to Alec Fletcher, Daisy's husband and a DCI of Scotland Yard, to unravel the mystery and the long held family secrets that led to this state of affairs before anyone else can fall prey to the tragic cycle of events.