San Franciscans know how controversial real estate can be. Especially when you toss race relations into the bidding process. Transmuting the events of Lorraine Hansberry’s A Raisin in the Sun into a fresh new tale, Clybourne Park starts in 1959 when a white couple sells their home to a black family. Fifty years later, the same house is being sold by a black family in what is now a predominantly black neighborhood. Humans are cyclical creatures, and the hilarious and squirm-inducing debate seems alarmingly familiar half a century later.