“The Absolute Brightness of Leonard Pelkey,” a one-man show written and performed by James Lecesne, who wrote the screenplay for the Academy Award-winning film “Trevor,” is a gripping show recounting the tragic disappearance of a flamboyant gay teen in a small Jersey Shore town that will never be the same. Tony Speciale directs, with music by Tony Award-winning composer Duncan Sheik (“Spring Awakening”). 92nd Street Y, 1395 Lexington Ave., Kaufmann Concert Hall. Jun. 17, 8 p.m. Tickets are $32-$45, $15 for those 35 and under at 92y.org.