Four dead men. Four spotless reputations. Four histories someone worked very hard to bury.

Detective Nadia Cross came to Cascade Falls after refusing to alter a report when the truth became politically inconvenient. She expected a fresh start.

Instead, her first major investigation leads her to a killer unlike any she's hunted before.

The victims are respected businessmen, husbands, community leaders?the kind of men cities mourn without hesitation. But beneath the public records Nadia finds something else: dismissed domestic-violence complaints, sealed files, vanished evidence, and women who asked the system for help and received nothing.

Someone remembered.

Delia Marsh has spent sixteen years as a crisis counselor listening to women explain exactly how institutions failed them. Quiet, meticulous, and almost impossible to trace, she has spent nearly a decade building a record of her own.

Now Nadia is following it straight to her.

As detective and killer move toward an inevitable confrontation, Nadia faces a question no police academy prepared her to answer: What does justice mean when the murderer is guilty?but the dead were protected by the same system hunting her?

A morally complex psychological crime thriller told from both sides of the investigation, The Last Good Girl launches the Cascade Falls series with a battle between law, truth, and the dangerous space between them.