At last - finished The San Pedro Blues and published - available in soft cover or Kindle edition on Amazon - here's a taste:

Thirteen young women from Ukraine are smuggled into Port of Los Angeles inside a cargo container, victims of human trafficking, destined for a life of sexual slavery. Twelve of them will die at the hands of a machete wielding murderer. Only one will survive. Anichka Markovich who burns with a fierce hatred and desire for revenge. 

Rick Sandler and John Cameron, detectives in LAPD's elite Robbery-Homicide division are assigned to the case. Working with U.S. Attorney Ray Manzarek and Vice Officers Angel Estrada and Roy Cooper, they search the streets of San Pedro and North Hollywood determined to find the people behind the trafficking operation, in hopes it will lead them to the killer. 

On the personal side, Katie O'Hara is now a graduate of the police academy, working as a patrol officer under the tutelage of her training officer. When she discovers that Rick has used his influence to gain her a relatively safe assignment, she puts in for a transfer and finds herself in San Pedro, a move that will irrevocably change her life. 

Katie soon falls in love with San Pedro, a very different beach town than Marina del Rey, a working class community that is home to Port of Los Angeles. After an act of heroism, she is accepted into The San Pedro Blues - a unique group of police officers - who take pride in their town and their way of policing it. 

In this case, The Blues has a deeper meaning. In referencing music, B B King says The Blues is rage and anger. 

Idiomatically, when someone experiences intense emotions, feelings of hopelessness and uncertainty, we say that person has 'The Blues'.  

In this story, almost all of the major characters, have 'The Blues' hence the title.