Damaged goods : an Erica Jensen mystery
(Book)

Series numbering from Goodreads.

Unlicensed private eye Erica Jensen works as a "researcher" who performs background checks, conducts surveillance, and takes on other dubious assignments while battling post-traumatic stress and an opioid addiction. When a wealthy man hires her to find his missing daughter, Erica ends up with more work than she bargained for: a murder victim and unwanted attention from the killers. While seeking the daughter, Erica uncovers evidence that raises questions about the dead man. Did the missing daughter know him? Did the victim have ties to an artifacts smuggling ring? Erica's search for answers puts her in the crosshairs of people who kill to keep secrets.