Bad Blood (2007)

While Manhattan assistant DA Alexandra Cooper is prosecuting a social climber charged with offing his wife, a seemingly unrelated explosion in a tunnel deep underground brings to the surface oodles of new leads in the case. Turns out the accused abandoned his family of ''sandhogs,'' the term for those who dig the city's labyrinth of tunnels, and his duplicity smacks him in his pricey britches. The fascinating nuggets of Linda Fairstein's research — especially details of the water tunnels constructed 600 feet below Manhattan — elevate Bad Blood from mere whodunit to history-inspired adventure.