Music is Emma Grant's world. Smuggling and murder are her family's.

As an internationally acclaimed sound engineer, Emma wants nothing to do with her family’s underground empire. But to secure the legacy of her family’s historic 100-year-old recording studio, she had to make a deal with the devil: her ruthless grandfather, Richard.

Now, the debt is due, and Richard expects her to take her place in his criminal syndicate. When Emma tries to turn her back on the family business, Richard strikes back with terrifying precision—kidnapping her rockstar boyfriend and threatening everyone she loves.

Trapped between the music she lives for and a lethal network of jewel smugglers and assassins, Emma is forced into the dark underworld she spent her life escaping. To save the people she loves, she must play her grandfather's deadly game... and find a way to tear his empire down from the inside.