Audrey Scarlett I - The Audrey Scarlett Mysteries, #1

Audrey Scarlett is part time investigator and full time dominatrix. Life might be a little too dull at the moment, but when a grieving mother and string of vicious murders demand her attention she is thrust into a bizarre world of sex and death.  Now she must save a mother's only son and stop the murders before the city explodes in fear and disgust at her world!