Host Meg Wolitzer presents three works in which characters have unusual friends who change their lives—whether they like it nor not.  In “Unicorn Me,” by Elizabeth Crane, a magical box delivers a unicorn who offers ambiguous advice. Miriam Shor performs.A sentient cockroach intrigues and alarms a woman in “The Double Life of the Cockroach’s Wife,” by Helen Phillips.It’s performed by Sarah Steele. And the latest iPhone knows everything about you in Weike Wang’s “iPhoneSE,” performed by Dawn Akemi Saito. All three stories were commissions for SELECTED SHORTS’ anthology Small Odysseys.