The plot of Sir Henry at Rawlinson End revolves around attempts to exorcise the ghost of Humbert, the brother of drunken aristocrat Sir Henry. was accidentally killed in a drunken duck-shooting incident whilst escaping trouserless from an illicit tryst. It transpires that Humbert's ghost will not rest until it is supplied with replacement trousers. Until then the ghost walks the corridors of Rawlinson End, often accompanied by that of Humbert's dog Gums which has repossessed its own body, now stuffed and mounted on a trolley. Amongst the eccentric family members, mad friends and grudgingly loyal servants involved are Hubert, Henry's other brother, the eternally knitting Aunt Florrie, the tapeworm-obsessed Mrs. E, Lady Philippa of Staines, who enjoys the odd 'small' sherry and the ever-present Old Scrotum, Sir Henry's wrinkled retainer.
'It's impossible to do justice to the film's arrant and quite unique lunacy.' – The Financial Times
'Sir Henry is a comic masterpiece.' – NME
'This extraordinary film is one of the most haphazard British comedies I've seen. It is also a long time since I've laughed so much... a cult in the making.' – The Guardian
'You'll laugh, you'll cry, you'll jab your eyes with fingers still trembling from the trauma of being made a child again. You'll jab your eyes just to check you've just seen what you think you've seen.... Sir Henry is a film to be experienced as closely and seriously and often as possible, a work of art that should sink under the skin and into the bones and do its good work like vitamins and Trout Mask Replica. I can't recommend it highly enough so I won't even start. It's out there if you want it. And in here whether you want it or not, Englander pig dog. A talking picture. And what could be more wonderful than that?' – Plan B
'It wouldn't be a million miles wide of the mark to call "Sir Henry at Rawlinson End" a missing link between Monty Python and "Withnail & I", but as the brainchild of Vivian Stanshall - pack leader of the Bonzo Dog Doo-Dah Band - it has a place in the pantheon of sophisticated English silliness all of its own.' ***** – Time Out
'Although it truly is in the grand wazoo of weird, the film remains surprisingly unknown and unscreened since its release in 1980. I remember a grainy VHS furtively passed around at school, and even this clear as a bell DVD version feels a bit naughty... The movie equivalent of cheese before bed, this film guarantees nightmares, but in a good way.' – The Big Issue