Anna Sullivan's dream job as a homicide detective for Seattle is quickly shattered by a series of killings. This friendly city is on high alert as a brilliant stalker goes on a killing spree. The unmarred bodies of women continue to be dumped in local parks only to be discovered by unsuspecting early morning walkers. Quickly the local press nicknamed the stalker as "The Park Killer".

Anna becomes obsessed by the case and compelled to catch the murderer. Unfortunately, fate deals her an unlucky card and her life starts to unravel. But she can't give up. She is addicted to following the clues and determined to solve the case.