Opening for the production, directed by Sam Gold, is Oct. 6 in the Roundabout's 62-seat Black Box underneath the Laura Pels Theatre.

Roundabout Underground was launched in 2007 to introduce and cultivate artists and new works. All tickets for Roundabout Underground productions are $20.

Here's how Roundabout bills the play: "Tigers Be Still is a comedy that follows the story of Sherry Wickman [played by Feiffer], a young woman who expects the perfect career and life to fall into place immediately upon earning her masters degree in art therapy. Instead, Sherry finds herself unemployed, overwhelmed and back at home hiding out in her twin-sized childhood bed. But when Sherry gets hired as a substitute art teacher, things begin to brighten up. Now if only her mother would come downstairs, her sister would get off the couch, her very first therapy patient would do just one of his take-home assignments, her new boss would leave his gun at home, and someone would catch the tiger that escaped from the local zoo, everything would be just perfect. "

The Tigers Be Still creative team includes Dane Laffrey (sets and costumes), Japhy Weideman (lighting) and Fitz Patton (sound).

The Black Box Theatre is part of the Harold and Miriam Steinberg Center for Theatre at 111 W. 46th Street in Manhattan. Roundabout Underground "is an initiative to showcase new plays that will either allow an experienced director to go back to his/her creative roots or give a debut production to an emerging writer or director. "

In spring 2011, Roundabout Underground will present David West Read's The Dream of Burning Boy, directed by Evan Cabnet.

Playwright Rosenstock recently earned her MFA in playwriting under the mentorship of Paula Vogel at the Yale School of Drama, where she is the recipient of the Eugene O'Neill Memorial Scholarship. Her play 99 Ways To Fuck A Swan was featured in Portland Center Stage's 2009 JAW Playwrights Festival. She was the artistic director of the 2009 Yale Summer Cabaret.

For tickets and more information, call Roundabout Ticket Services at (212) 719-1300 or visit www.roundaboutunderground.org.

All tickets for Tigers Be Still will be issued as general admission passes for first-come, first-served seating on the show date.