It is Marti’s first day as a dog-sitter and the French bulldog he has been entrusted by a wealthy woman is stolen. She and her girlfriend set off in pursuit of the thief, a fake vet called Dr Mopsi. But who really is this man? The second half of the film depicts the days leading up to the theft, introducing us to the melancholic Orazio and revealing just how he came to wear the clothes of the mysterious Dr Mopsi.