If you, like me, haven't read the Sin Brothers series, don't worry because you can follow this spin-off with no problems. In fact, Zanetti does a good job presenting you some unusual characters and a catching plot, keeping the reader engaged while also making them question both events and characters.
I found the premise really interesting, and I wasn't bothered by the fact that the main characters here already know each other and are in a relationship of some sort—although 'relationship' might sound like a too big of a word for Zara and Ryker—but I kept feeling something was off... Those two have an undeniable chemistry but, while reading their dialogues and steamy scenes, I just couldn't click with them. There were also times when I felt things went too fast, or would be said/accepted too easily, and that may be because there's too much going on. However, there was a nice dose of action and mystery that I liked, and turns I always appreciate in my reads.
Overall, I'm glad I read "Deadly Silence". It was my first try with a Zanetti's book and I actually want to find out more about her Blood Brothers series because it's no typical romantic suspense, and you gotta like that.