New York in 1896 is a city of Gilded Age extravagance built directly atop poverty, corruption, and violence that polite society prefers not to see, which is exactly where police commissioner Theodore Roosevelt sends his unofficial task force. Criminal psychologist Dr. Laszlo Kreizler, illustrator John Moore, and secretary-turned-investigator Sara Howard track a killer preying on boy prostitutes using then-radical methods of profiling and forensic deduction that the NYPD dismisses as pseudoscience. Daniel Brühl brings a controlled intensity to Kreizler, while Dakota Fanning's Sara pushes against the era's suffocating limits on women in law enforcement. Handsomely mounted and unflinching about period brutality, it's a procedural that treats early criminology as its own kind of detective story.