Host Meg Wolitzer presents a quartet of summer stories.  Umberto Eco endures trial by mini bar in “How to Travel with a Salmon,” read by Jin Hah.  A scenic getaway turns eerie in Elizabeth Spencer’s “The Weekend Travelers,” read by Campbell Scott.  Life looks up—way up—for an overworked restaurant owner in “The Man, The Restaurant, and the Eiffel Tower,” by Ben Loory, read by Stana Katic.  And upper-class “frenemies” have a reckoning in Edith Wharton’s “Roman Fever,” read by Maria Tucci.