When her sister-in-law Isabel is found viciously slashed to death, savvy young socialite Judy Shepard realizes this isn't your everyday homicide-no motive and too many suspects. But the most mind-boggling mystery of all is the murder weapon. It keeps vanishing and then turning up again in the strangest places as the corpse count mounts. Now, Judy must track down this vicious killer before the wandering knife ends its travels embedded in her own heart.