Set in a kiva, "Mesa Verde" unfolds as two sisters converse and work back toward the roots of their lifelong conflicts and try to resolve difficult questions about their past.

While this sounds like a recipe for a draining afternoon, it makes for a terrific play, and emerges as a deeply affecting, riveting performance that should strike a chord with nearly anyone who sees it. Regardless if your family is more Norman Rockwell than Jerry Springer, virtually no one sees their parents or siblings as ideal. This is just one of the many topics that this 70-minute, three-person emotional tsunami of a play rolls through.

Plan B Theatre Company, which is celebrating its 20th Anniversary season, is to be commended for its patience and foresight as playwright in residence Matthew Ivan Bennett shepherded the production from a 10-minute SLAM entry in 2006 through its appearance in the 2007 Script-In-Hand Series to its present-day full-blown realization.

The emotion - peppered with insightful, revealing dialogue and merciful blasts of humor - evoked from the two sisters Tabitha and Tamara never lets up but is enjoyable nonetheless. Hats off to April Fossen who plays the practical, frustrated and ailing Tabitha and Christie Summerhays who plays the cranky environmentalist Tamara. A special kudo should also go to Teresa Sanderson who plays the "Goddess," which morphs into the Tamara and Tabitha's mother, as well as both of their beaus.

Bennett's play easily engages the viewers from the opening scene and never lets up. Not many tickets are left for the showings, which continue through March 6. Don't miss it.