Stalker plot
Detective Jack Larsen is transferred from the New York City homicide unit to Lieutenant Beth Davis's unit. His self-confidence, strong personality and questionable behavior have gotten him into trouble before, but his past behavior may well come in handy for his new job. His lieutenant is a strong, focused expert in the field and is driven by her own traumatic experience as a stalker's victim. With the rest of the team, Larsen and Davis assess the threat level of each case and respond before the stalking and harassment spiral out of control.