The year is 1589. Will Revill is ordered by spymaster Sir Thomas Heneage to head to the mansion of Sir Abel Stanbury in Surrey and kill him. The reason is confusing but the alternative is not; Revill's sister is married to a Catholic and in this era of anti-Pope sentiment, that could be disastrous for her is Heneage wanted to make trouble and he vowed to unless Revill killed his target making it look like an accident.