A Heart for Murder by Linda Owen

After four years of marriage, Lydia Warren awakes from an accident with no memory. Her husband Dean, a police detective, is forced to face the painful truth that his wife doesn't remember him. In the midst of his hunt for a serial killer, Dean vows to find a way to make his wife fall in love with him again. Dean and the homicide team are baffled in their hunt for the killer. One by one the bodies of strangled young women are found with hearts carved into their flesh. If Dean stands any chance of catching the killer, he's going to need the help of his teenage sons, a retired police chief, and a lot of luck. In this powerfully moving tale of love lost, rediscovered, and renewed, Owen once again brings readers an exciting mystery with a surprise ending.