By Tina Jordan
Updated November 02, 2007 at 04:00 AM EDT

Regency-era London — abuzz with the grotesque murderes of several wealthy young men — looks to nobleman/ sleuth Sebastian St. Cyr to solve the crimes.

Movie Pitch
It’s Hannibal Lecter — early-1800s style!

A serial-killer thriller set 200 years ago? It may sound incongruous, but it works, thanks to C.S. Harris’ pacing and fine eye for detail in Why Mermaids Sing. A real plus: the murk and stench of the age only heighten the suspense. B+