The folks in Fort Wayne, Ind., know Ace McKay as the co-host of the morning show on Star 88.3, the area’s Christian radio station. But McKay has another calling in addition to waking up at absurd hours of the morning: He is dedicated to saving marriages. Several years ago, God miraculously saved McKay’s marriage, and now he has started a ministry, The Marriage Playbook, to offer that same help to other struggling couples.