Host Meg Wolitzer presents three stories about people inserting themselves into the lives of others—in their own best interests.In Simon Rich’s “Relapse” friends rally ‘round when one of their number heeds the call of the muse.  It’s read by Ophira Eisenberg.  In Langston Hughes’ “Thank You, M’am,” read by Pauletta Washington, a fierce old lady sets a young man straight.  And a young woman finds an ingenious way to cheer up retirees—and herself—in Miranda July’s “The Swim Team,” read by Parker Posey.