Japanese playwright Toshiki Okada is not terribly optimistic about his country. He named his theater company "chelfitsch," a baby-talk breakdown of the English world "selfish," which, he says, evokes "the social and cultural characteristics of today's Japan." His play Five Days is about what young couples were doing when the U.S. attacked Iraq in 2003—one pair stays in a love hotel for five days, leaving only to eat. As they speak, Okada's actors perform a kind of choreographed Saint Vitus' dance, a corporeal static that looks as glitchy as the lights in Shibuya. (On the Boards, 100 W Roy St, 217-9888. 8 pm, $12–$24. Runs Jan 28–Feb 1.)