Nelson Moss (Keanu Reeves) and Sara Deever (Charlize Theron) have nothing in common except an hour spent in DMV hell. Intrigued by each other, but not quite ready to commit, they settle on a rather unconventional courtship: a one-month trial, after which they'll go their separate ways. No expectations. No pressure. No strings attached. What neither of them counts on is falling in love.