Seventeen-year-old River doesn't know what to do with himself when Penny, the girl he adores, dumps him. He lives in LA, where nobody walks anywhere, and Penny was his ride; he never bothered getting a license. He's stuck. He's desperate. He's lonely.

One afternoon he does the unthinkable - he starts walking, and stumbles on a support group for teens with addictions. He fakes his way into the meetings and begins to connect with the other kids, but when he finds himself falling for one of the girls in the group a delightful comedy of errors ensues. River wants to tell the truth, but he can't stop lying, and his tangle of deception may unravel before he learns how to handle the most potent drug of all: true love.