This starts as a documentary about an offbeat online relationship before warping into something much more interesting. It essentially becomes a real-life thriller packed with outrageously amusing observations.

The title refers to a metaphor about how we need people around us who can keep us on our toes. Nev Schulman is a 24-year-old New York photographer who begins corresponding with 8-year-old Abby Pierce in rural Michigan after she painted versions of his photos. As Abby tells Nev stories from her family life, Nev's filmmaker brother Rel and his colleague Henry start documenting this unusual web-based friendship. And soon the paintings start to arrive in New York by the boxload, as well as songs written by Abby and her musician brother Alex.

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