Reality Curve Theatre of Vancouver is making its first visit to New York City with Zayd Dohrn’s early play Reborning. Ten years ago, when Dohrn was unknown, this unsettling, if far-fetched, comedy-drama was part of the Summer Play Festival at the Public Theatre. Since that time, the playwright, who heads the graduate dramatic-writing program at Northwestern University, has penned a number of provocative yet non-preachy scripts that explore social issues through clashes—always fierce, sometimes violent—among recognizable characters.