Okay, I can't go because I have the ticket to the Ayckbourn play and had the date wrong for this event, but if you are free then you should go to:
VANISHING POINT at ENSEMBLE STUDIO THEATER
Call the theatre's main # at 212-247-4982.
They should answer between 10 - 6, M-F.
Tell them you are making a reservation for the OCTOBERFEST project VANISHING POINT on October 6 at 8:30 pm in the 2nd Floor Mainstage theatre. The address is 549 West 52nd Street, between 10th and 11th Avenues (closer to 11th, on the north side of the street. There is a Blue Banner above the entrance that says Ensemble Studio Theatre)
This show by Rob Hartmanm (a wonderful writer and boyfriend of this man) is amazing. I saw it last year at the Symphony Space (read about it here and here).
It is really a brilliant show. To give you an idea, I saw it one time over a year ago, and there is a song that I find myself humming from time to time now. Go see it, you won't be disappointed.