Maritius, a play by Theresa Rebeck at the Manhattan Theatre Club, Biltmore Theatre. Starring Alison Pill, F. Murray Abraham, Dylan Baker, Katie Finneran, Bobby Cannavale, directed by Doug Hughes. We figured this was going to be one of the strongest plays of the Broadway season, so we had high expectations. Well while "Maritius" wasn't quite as lofty as that, it is a powerful play, and only its improbably romantic ending (it rang false for me, but my wife liked it) kept it from being as solid as Rebeck's last play "The Scene." The sets are superb and the acting sensational. Alison Pill tightly wound as ever is excellent in the lead role, F. Murray Abraham rings true as a crazed collector (these I know so well!) as does Dylan Baker as a cynical, dishonest stamp dealer. But the most nuanced acting comes from Katie Finneran who is not what she seems and most especially from Bobby Cannavale who will probably get a Tony nod for his sizzling performance. If "Maritius" doesn't hit the heights, it is well worth attending. Broadway Bridge and Tunnel Test. B.