Lucas is dangerous. Lucas is second in command man of Julian, a notorious arms dealer. 
 He first notices Yulia when she serves as a translator during a meeting between his boss and some Russian contacts. Later she sleeps with him, she betrays both Lucas and Julian and as a result there is a plane crash and the death of at least 40 men. 
 Lucas becomes obsessed with her. In the beginning he decides to keep her just to interrogate her, but later she becomes more important than the air he breaths. Everything inside him scream SHE IS MINE, MINE MINE! 
 He becomes possessive and protective but he hates her at the same time and he does not trust her. Because of her a lot of his brothers in arms have died. 
 Yulia besides being a spy, she also has personal secrets. Secrets which involve a teenager brother. A brother who she is trying to keep safe and alive. 
 The book ends with a cliffhanger. Keep the second and the third book close to you because I am sure you will dive in as soon as you finish the first one.