The murder of a janitor in a university laboratory building leads back to a student employee whose participation in a drug study may have prompted the crime.

When Logan and Greevey investigate how a family man came to be found unconscious in Central Park, they uncover a very high-class call girl operation run by a well-educated socialite.

Lupo and Green’s first offical case together is a kidnapping that happened during a citywide blackout; a housekeeper is slain and a mother and daughter are kidnapped. The evidence that…