It begins with a policewoman's sixth sense, like a silent tap on the shoulder. The feeling that someone's watching you, following you. And this isn't the first time newly trained policewoman Cindy Decker has been threatened personally. A year ago, as she and a friend left a gym, someone took pot-shots at them. No one was hurt but months later her friend was killed in a carjacking. And now Cindy is wondering if her name will be next on the list of homicides.
For someone is definitely after her, trailing her down dark mountain roads, breaking into her apartment, destroying her belongings. There's no shortage of suspects in Cindy's mind: someone relating to the unsolved carjacking; even one of her colleagues on the LAPD, for as the daughter of one of its best known detectives, Peter Decker, it's not been a straightforward induction. Fiercely independent and with reckless abandon, Cindy launches her own private investigation, opting to keep her father in the dark.
But Cindy's list of suspects seems to be spiralling out of control. And when her stalker's threats become violently brazen she turns to the most unlikely source of assistance in the case - and in her own private life. Desperate to conceal the facts from her father, it's only when their individual cases appear to be on a collision course that Cindy allows Decker into her panic-stricken world, where menace underpins her every moment and a split-second decision can mean the difference between life and death . . .
