Celebrity dogs are taking Instagram and YouTube by storm, fuelling a massive rise in demand for ‘must have’ breeds like the Pug, the French Bulldog and the Dachshund. Grace Victory investigates the dark side of the designer dog industry – from the smuggling of sick and underage puppies from puppy farms in Europe, to the crippling health problems endured by some of the internet’s most loved breeds. She explores the myths and the misconceptions, and finds out how much we really know about where our dogs come from.