27-year-old Lawrence Barraclough has a penis that measures just 3.5 inches when erect. With the average man’s erection over five inches, this has caused him great anxiety and even stopped him having sex for three years. In this documentary, he interviews a wide range of people about penis size and how much it matters, including his current girlfriend, his female friends, other men, porn stars, a consultant urologist and Cynthia Plaster Caster.