Hidden Gem

 Chronicles of City M Book One by Lissa Kasey

MM Gay for you romance with a police detective tracking down a serial killer with the help of a prostitute with the psychic ability to see people's past.

Previous called the Hidden Gem series, this is a complete series featuring three different couples (one main per books with previous couple cameos) ending in a giant eruption of magic, mayhem, and maybe some murder.

Narrated by: Adam McLaughlin

Note: This is for the audiobook copy delivered via Bookfunnel