Boasting an amazing selection of the most watched, most influential and most highly acclaimed programmes ever made, The 50 Greatest Television Dramas presents a long overdue assessment of the rich heritage television drama has to offer. Channel 4 invited over 200 of Britain's top television drama professionals – writers, directors, producers and commissioners – to take part in an exclusive poll to discover what they consider the finest dramas ever produced.

With a house to sell and no time to be there in person, overworked TV producer Chris Ashworth is forced to leave his incompetent flatmate Bob to show real estate agents around the property. Knowing that Bob is not the most attentive flatmate, Chris tells him to show anyone that calls inside. When Chris finally returns home he finds that Bob has taken him at his word, literally. With four estate agents, some Jehovah's Witnesses, an incontinent American, a corpse and two armed gangsters, Chris's world may look like its falling in, but there's worse to come.