Host Meg Wolitzer presents four stories in which characters give, and get, a little assistance, from friends, strangers and family. A daughter copes with a cantankerous parent in “How to Take Dad to the Doctor,” by Jenny Allen, performed by Jennifer Mudge. A woman moves to a new town and makes a strange new friend in Laura van den Berg’s “Friends,” performed by Roberta Colindrez. A Tyrolean café improbably situated in South America is home to mysterious strangers and new and old romances, in Isabel Allende’s “The Little Heidelberg.” It’s performed by Kathleen Turner. And a budding singer and socialist gets unwelcome help from Mom in Grace Paley’s “Injustice,” performed by Jackie Hoffman.