The first book was pretty nice, I'll say. I won't read the whole series for sure, I'll be reading certain books in the series. But, better than the rest NA that I've read in recent times. 
 To be honest, this book was in my tbr shelf for so long, that I had almost forgotten about it, until....the new song, 'Dusk to Dawn', by Zayn Malik and Sia came out, and suddenly I remembered...I have a similar story still in my tbr shelf! So..that's how I picked this book again. 
 Basically, this is the story of Sarai, who was held captive for 9 long years in Mexico, till Victor Faust, an assassin comes to make a deal. Sarai takes advantage of the situation and escapes from her prison with Victor. And that's exactly how their journey begins. 
 I like the story in the sense that is also focused on the hard core action and the shady world, rather than putting the entire focus on the love story and steam. However, what somehow irked me that the world that Sarai was trying to escape from...she ended up at the same place. Nonetheless, I liked this book much better than J.A Redmerski's 'The Edge of Never' series. 
 Like I said, I won't be reading all the 7 books, I'll be skipping a few amongst them, but, 'In the Company of Killers' series will keep my interest piqued.