John Lutz: The Night Caller (USA 2001)

From the Publisher:
Young, Beautiful... And Dead
When he stumbles across his only daughter's corpse in a deserted beachfront bungalow, devastated Ezekiel Cooper vows to find her murderer. What the former NYPD detective doesn't know is that there have been other victims. Women in Queens, Sarasota, Seattle. Women who seemingly had nothing in common, aside from a grisly fate at the hands of a chillingly clever stranger.

Bent on unmasking the shadowy culprit, Coop soon crosses paths with Maeve Callahan, who's determined to lure in her sister's killer by transforming herself into someone just like her sister. But by changing her appearance, her job, even her routine, Maeve's plan may be working too well. Because lurking in the shadows, just as Coop feared, the elusive serial killer known as the Night Caller watches her every moveŠpreparing to pounce again.

John Lutz: The Night Caller. Pinnacle Books, ISBN: 0786012846 (October, 2001), 400 p., $6.99.