Don't Drink the Nine (Delacroix #2)
P.M. Briede

Free from the restrictions of the case, their love affair becomes a full-blown relationship. Life is relatively normal until another chorus girl turns up dead, and a new cocktail hits the Broadway scene, “Nine.” As the case progresses, it’s looking more and more like Em is somehow tied to an illegal underbelly of New York.
Richard must swallow his pride, and his fears, and work with his argumentative brother, Bobby, to crack the case and protect Em. While one killer is behind bars, the man pulling all the strings is still at large and still set on Em. Richard and Em both know what it will cost to catch a maniacal killer, but the price might be more than they are prepared to pay.