Frankie and Johnny in the Clair de LuneShakespeare & Company in LenoxWritten by Terence McNallyDirected by Nicole Ricciardi“O Lordy, How they could love.” Together, half in the dark and half in half light, this old play renews itself as a very contemporary piece of theater. In Shakespeare & Company’s new production, even the classic items in the set seem to be instantly familiar. She has given her cast the chance to express sexual pleasure, sexual desire, and honest appraisal. “Frankie and Johnny in the Clair de Lune” plays at the Elayne P. Bernstein Theatre at Shakespeare & Company in Lenox through August 23.