Rabbis, nuns, mullahs, and Buddhists peacefully commingle with their friar hosts at an interfaith conference at St. Gerard’s college. But when an American female bishop is found dead, poisoned by a glass of the college’s own chianti, Lewis (Kevin Whately) and Hathaway (Laurence Fox) suspect that the bishop’s liberal views led to her murder. That is, until a far more gruesome death occurs, mirroring a macabre murder from a Jacobean Revenge tragedy. It’s a case that demands Hathaway’s prodigious literary and theological knowledge and Lewis’ keen and common-sense gut instinct.