A Christmas Story, a near-genius piece of American reminiscence, is so period-perfect and charming that the squishy sentimentality (of which there is plenty) never leads to saccharine reflux. Philip Grecian is listed as the playwright, but everyone understands that the bulk of insights and telling detail comes from the mind of Jean Shepherd, who wrote the original story, co-authored the movie, and narrated the flick in his distinctive, triple-wry voice. The Cleveland Play House’s production of Story rides a two-hour wave of intricate details to unerringly establish the period and to help even the youngest patrons make the leap back to a time before televisions were omnipresent and cowboy hero Red Ryder was king of the wireless. The play opens tonight at 7:30 at the Allen Theatre. Performances continue through Dec. 23. Tickets are $25 to $110. (Christine Howey)