Mo Chou a neuroscience student, is engaged. Online she finds David, a retired man, with a rather mundane life. She convinces David to teach her sex to impress her future husband. As their relationship develops over a few months, David is tangled in a web of lies so confusing he can't keep up himself. "Please Call me David" is a heartfelt comedy about a nontraditional relationship and the randomness of online meetings.