At the reunion of former students of an all-female college, one of the attendees is murdered. Lewis suspects the murder may be linked to an attack at the college he investigated nine years earlier.
During an ecumenical conference in formerly Catholic St. Gerard's college, the poisoning of a female black American bishop triggers a series of bizarre murders.
When a retired MI5 official writes her best-selling memoirs, a chapter in her book about an unsolved IRA cold case causes consternation and ultimately several murders.
