Deadly Measures

"After the violent death of his partner drove him out of the CIA, former black ops agent Jude Wyland is struggling to return to civilian life. Opportunity knocks when an old high school friend learns about his past and asks for his help finding her aunt.
Problem is, she isn't actually missing. But Jude's friend believes the woman who came back from a two-month work leave isn't the same one who left -- and something terrible happened to her real aunt."