Human puppy play has recently become a global phenomenon, there are now an estimated 10,000 ͚ human pups͛ in the UK alone. But what makes these grown men covet doggy treats, belly rubs and squeaky toys? A remarkable behind-the-scenes look at the hidden world of human pups, introducing us to a secretive subculture of men who dress and behave like dogs in a bid to become their very own pet.