In first-century Rome, Flavia Albia, the daughter of Marcus Didius Falco, has taken up her father's former profession as an informer. Her beloved, the plebeian Manlius Faustus, has recently moved in and decided that they should get married in a big, showy ceremony as part of beginning a proper domestic life together. Also, his contracting firm has been renovating a rundown dive bar called The Garden of the Hesperides, only to uncover human remains buried in the backyard. In the choice between planning a wedding and looking into a crime from long ago, Albia would much rather investigate a possible murder. Or murders, as more and more remains are uncovered, revealing that something truly horrible has been going on at the Hesperides.