Mosaic Theater Company stages all three of Ifa Bayeza’s history-based plays. The most intriguing is the second part, “Benevolence.” Review by Celia Wren for The Washington Post. In a chillingly lyrical moment in Ifa Bayeza’s play “Benevolence,” a guilty Mississippi woman sees a vision in a burning cloth. It’s 1955, and this White 20-something...