My Cradle, Your Grave: (the haunted past series book 1)

DI Devlin Doyle is a detective with a past, if only he could remember it. After a case goes wrong he finds himself in a new city and launches into an investigation that hits closer to home than he knows.

DI Serenity "wren" Jones is a woman in a man's world. To succeed she's had to be tough. When she's assigned the task of "babysitting" a new detective sent from the London's met office, she is less than impressed.

As an investigation of a series of assaults turns to brutal murder, they find themselves in a race against time, digging through a past crime, to solve murders that rhyme.