Despite their rocky history, Detective Claire Codella and Precinct Detective Brian Haggerty come together when senior churchwarden Philip Graves's bloody body is found lying in the herb garden of historic St. Paul's Episcopal Church on Manhattan's Upper West Side just two days before Good Friday. Upon first glance, it looks like a random act of big city violence, but it soon becomes clear churchwarden Philip's death was the result of a meticulously calculated ploy by someone who knew him.There are five vestry members and a choir director in addition to the ten homeless men asleep in the church basement. Any one of them could have done it, but what did Philip Graves do to warrant such a merciless death? Struggling to share the case and salvage their personal relationship, Claire, Brian and trusted Detective Eduardo Muñoz work around the clock to uncloak the desires, secrets, and resentments that find home through the iron gates and into the hidden beauty of one historic Romanesque church in Unholy City, the haunting third installment in Carrie Smith's Claire Codella mysteries.