A director and two actors pretending to be a sound technician and camera operator get hired to make a mediocre promotional video in a beautiful villa on the outskirts of Rome. Unbeknownst to the villa's owner who hired them, they take advantage of the situation to shoot the key scene of their no-budget, English-language horror film. To get the most truthful performances from his actors, Paolo places them in very realistic situations, passing off his ineptitude as a directing style. But something may not be quite right in the villa after all. Thus begins a delirium of truth and fiction, recrimination and ruthless violence, whose main victim is the actress Diana, who's been working with Paolo for years.