This thriller way very readable and fast. I found myself more caring for the story part with Hank. Rain was ok but a bit of a lackluster character. Greg, Rain's husband, seemed really weird and kind of whiny.
Rain and Hank had something horrible happen as kids and I was thrown for a bit of a loop as to who the killer was..... And also who knew about the kills.
Overall it was ok but I had hoped for a bit more.