Honors student Sarie Holland is busted by the local police even as doing a favor for her boyfriend. Unwilling to betray him but desperate to keep away from destroying her future, Sarie has no choice but to turn into a “CI”–a confidential informant.

Philly narcotics cop Ben Wildey is hungry for a career-making bust. The detective thinks he is found the key in Sarie: her boyfriend scores from a mid-level dealer with alleged ties to the major drug gangs.

Sarie turns out to be the very best CI: a quick study with a shockingly keen understanding of the criminal mind. But Wildey, desperate for results, pushes too hard and inadvertently sends the nineteen-year-old into a death trap, leaving Sarie hunted by crooked cops and killers alike with nothing to save her–apart from what she’s learned all over her harrowing weeks as an informant.

Which is bad news for the police and the underworld. Because in relation to payback, CI #1373 turns out to be a very quick study…