John Lutz: The Ex (USA 2005)
From the Publisher:
What Deirdre Wants, Deirdre Gets...
It's so exciting to start over. Deidre Jones should know, since she's doing just that. The first step was getting out of the mental hospital in St. Louis. There were those who tried to stop her... so she had to make them understand: Deirdre gets what she wants. And she wants her ex-husband, David, back. He's got a new wife and a little boy. He's forgotten what he and Deirdre once shared. But it will be easy enough to remind him now that she's moved in upstairs...
No Matter Who Has To Die.
For David, his time with Deirdre was a dark chapter he was glad to see end. Their marriage was based on dangerous, obsessive passion -- and when David left, he never looked back. He'd hoped it was the same for Deirdre, but her "neighborly" behavior soon proves him wrong. She's doing her best to manipulate herself back into his life: through his child, through seduction... through murder. Because Deirdre will do anything to get what can never be hers -- and now David is the only one who can stop her...
John Lutz: The Ex. Pinnacle Books, ISBN: 078601752X (October, 2005), 320 p., $4.99.