1950. William Lee, an American expat in Mexico City, spends his days almost entirely alone, except for a few contacts with other members of the small American community. His encounter with Eugene Allerton, an expat former soldier, new to the city, shows him, for the first time, that it might be finally possible to establish an intimate connection with somebody.

Nev, a 24-year-old New York-based photographer, has no idea what he's in for when Abby, an eight-year-old girl from rural Michigan, contacts him on Facebook, seeking permission to paint one of his photographs. When he receives her remarkable painting, Nev begins a friendship and correspondence with Abby's family. But things really get interesting when he develops a cyber-romance with Abby's attractive older sister, Megan, a musician and model. Prompted by some startling revelations about Megan, Nev and his buddies embark on a road trip in search of the truth.