Hot shot entrepreneur Ethan Cox appears poised to sell his self-driving car company and make his investors filthy rich. But when his problematic Halloween costume gets tweeted, the ensuing social media firestorm nearly ends Ethan's career. Desperate to figure out a way forward, Ethan hatches a plan: he will hire a 71-year-old snack cart vendor, Dotty, to pose as his company's figurehead, with Ethan still managing from behind the wings.