Over their almost decade-and-a-half career, the Kills have released four records. Each one a restless, reckless enigmatic art statement, yet not one of them sounded like the previous one. Ash & Ice, the follow up to 2011’s critically lauded Blood Pressures, is more understated, less tempestuous, and more affecting because of that, exposing the kind of push-pull you feel when you find yourself in a complicated but all-consuming relationship. This is the Kills at their emotionally charged, arresting best. Prepare to be slayed.