Unfriend (2013)

Shelly and Silas scam Oscar and Ophelia, kicking off a series of hilarious back-and-forth revenge schemes. Told mostly from Ophelia's smart-ass perspective; she deals with her little brother's running away, her ex-friend Shelly's scams, her grouchy neighbor's agoraphobia, and a fading beauty queen's desperate attempt to hold onto her youth.