It would be difficult to forge a more harmonious union of cast, director and script than the one created at the Variety Arts Theater, where Daniel Sullivan's unflinching production of Donald Margulies's rueful play is ending its run.

In Keith Reddin's speculative and rueful new play, the lone gunman explanation for the assassination of President John F. Kennedy is dismissed as if it were self-evidently contrary to fact.

Mr. Gurney is, of course, well known for his satiric, rueful plays about a dying-out WASP life style, "The Dining Room," being the best known of the genre.

A marriage crumbles in "Dinner With Friends," but it would be difficult to forge a more harmonious union of cast, director and script than the one created at the Variety Arts Theater, where Daniel Sullivan's unflinching production of Donald Margulies's rueful play opened last night.

In Keith Reddin's speculative and rueful new play, "Frame 312," the single gunman explanation for the assassination of President John F. Kennedy 40 years ago is instantly dismissed.