The Alienist & The Angel of Darkness by Caleb Carr
Because The Alienist and it’s sequel, The Angel of Darkness, is a unique take on a common idea:
Because it’s like a procedural show, only set in the turn of the century
Because it’s a criminal investigation in the days before forensics was accepted
Because it focuses on the psychology of the criminal intent
Because it gently reminds the reader how different life was back then, what with the NYPD bursting with corruption, juries consisting only of white males, and the censoring of newspapers to protect the public’s sensibilities.