When coastguard officer Adrian Loya breaks into the Cape Cod apartment of married couple Lisa and Anna Trubnikova and opens fire, it is the culmination of many months planning. With Lisa dead, Anna badly wounded and a policeman shot, Loya is taken into custody. Police find he is wearing a video camera to record his actions and also find videos made over many months when he was planning of the attack. There is also a journal charting his obsession with and hate for Lisa and the twisted thought process that lead to his decision to kill.