The LAPD pressures homicide lieutenant Milo Sturgis to cater to the demands of a mogul: a hard-to-fathom, megarich young woman who is obsessed with reopening the coldest of cases --- the decades-old death of the mother she never knew. A mysterious woman was found with a bullet in her head in a torched Cadillac that has overturned on infamously treacherous Mulholland Drive. No physical evidence, no witnesses, no apparent motive. And a slew of detectives have already worked the case and failed. But as Sturgis and psychologist Alex Delaware begin digging, the mist begins to lift. Too many coincidences. Facts turn out to be anything but. And, as they soon discover, very real threats lurking in the present.