Raymond Ambler, crime-fiction curator at New York City's prestigious 42nd Street Library, doesn't consider it a big deal when he misses a call from visiting professor Robin Cartwright . . . until she turns up dead in a hotel room.

Who killed the quiet academic, and why? Ambler feels duty-bound to find the culprit, and not just because the police half-suspect he's guilty of the crime. It wasn't just Professor Cartwright's phone call he missed, but any sign that she was in danger.

Robin was researching accidental deaths she believed were murders-could her work have got her killed? Soon Ambler's knee-deep in suspects, including a shady ex-husband, a slippery pastor, and at least one of his own colleagues. But the clock is ticking. If he doesn't catch a ruthless killer soon, it won't just be his own life in danger, but those of his partner and newborn child.