Plot

After a hotel reservation mix up, two sisters Karen and Jennifer, and their friend Vicki Thompson, meet friendly, but shady Ernest Keller. Ernest convinces the women into accepting an invitation for a cheap room at his large farmhouse where his wife Virginia also lives. Once there, Jennifer and Karen leave for the holiday parade fair which Jennifer is reporting about. At the festival Jennifer is met by her soon to be ex boyfriend, Tony, who gets her to stay behind to talk about their relationship. Meanwhile, back at the house Vicki prepares to sleep but is attacked by an unseen figure. The unseen eventually begins to pull Vicki into the vent when she tries to escape. Karen leaves Jennifer and Tony to talk, and makes her way back to the house where she too is attacked and killed by the unseen. Virginia finds both bodies of Vicki and Karen.

When Ernest arrives back at the house he finds Virginia in shock. It is this moment it is revealed Virginia and Ernest are, in fact, brother and sister, as well as husband and wife. It is also revealed they have a son named 'Junior' who has been kept in the basement and has occasionally been beaten by Ernest. Ernest and Virginia decide to kill Jennifer when she gets back to keep the secret.

When Jennifer gets back she is lured into the basement by Ernest who locks her inside. She wanders around looking for a way out and eventually discovers Karen and Vicki's dead bodies. In a panic she is confronted by Junior who turns out to be infantile but in an adults body and did not mean to kill Karen and Vicki. Ernest comes into the basement to finish of Jennifer but Virginia, having a change of heart, stops him. Ernest begins attacking Virginia but Junior becomes full of rage and protects his mother. A fight pursues between Junior and Ernest while Jennifer escapes. The fight ends with Ernest gaining a higher advantage and murders Junior. Ernest then makes his way outside to kill Jennifer. When she is being attacked Tony arrives and tries to help her, but he is unable to do so due to a leg injury. However, Ernest is shot through the chest by Virginia, having survived being attacked by Ernest. The film ends with Virginia cradling the dead body of Junior.

Cast

Actor / Actress	Character
Stephen Furst Stephen Furst Stephen Furst is an American actor and film and television director. He was a regular in the science fiction series Babylon 5 playing Centauri diplomatic attaché Vir Cotto and as Dr. Elliot Axelrod on St...	'Junior' Keller (The Unseen)
Barbara Bach Barbara Bach Barbara Bach is an American actress and model known as the Bond girl from the James Bond movie The Spy Who Loved Me . She is married to former Beatle Ringo Starr.-Early life:...	Jennifer Fast
Sydney Lassick	Ernest Keller
Karen Lamm	Karen Fast
Lelia Goldoni Lelia Goldoni Lelia Goldoni is an American actress who appeared in a number of motion pictures and television shows starting in the late-1940s, beginning with uncredited cameo roles in Joseph L...	Virginia Keller
Douglas Barr Douglas Barr Douglas Barr is an American actor, writer, and director. He has starred in movies and on television.Douglas was born in Cedar Rapids, Iowa. His first TV series, during the 1980s, was When the Whistle Blows. Later on, his big role came in the ABC TV series The Fall Guy as Howie Munson from 1981–1986...	Tony Ross
Lois Young	Vicki Thompson
Maida Severn	Solvang Lady

Release

The film was released theatrically in the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 by World Northal in September 1981.

The film was released on special edition

Special edition

The terms special edition, limited edition and variants such as deluxe edition, collector's edition and others, are used as a marketing incentive for various kinds of products, originally published products related to the arts, such as books, prints or recorded music and films, but now including...

 DVD

DVD

A DVD is an optical disc storage media format, invented and developed by Philips, Sony, Toshiba, and Panasonic in 1995. DVDs offer higher storage capacity than Compact Discs while having the same dimensions....

 by Code Red DVD in 2008.

See also

• Horror-of-personality
  Horror-of-personality
  Horror-of-personality is a specific sub-category of horror and thriller genres; as opposed to excessive violence or the presence of malevolent supernatural beings, such stories evoke horror and/or suspense through villains who are perfectly human, but possess horrific personalities. They usually...
  
  
• Exploitation film
  Exploitation film
  Exploitation film is a type of film that is promoted by "exploiting" often lurid subject matter. The term "exploitation" is common in film marketing, used for all types of films to mean promotion or advertising. These films then need something to exploit, such as a big star, special effects, sex,...
  
  
• Splatter
  Splatter film
  A splatter film or gore film is a subgenre of horror film that deliberately focuses on graphic portrayals of gore and graphic violence. These films, through the use of special effects and excessive blood and guts, tend to display an overt interest in the vulnerability of the human body and the...
  
  
• Slasher film
  Slasher film
  A slasher film is a type of horror film typically involving a psychopathic killer stalking and killing a sequence of victims in a graphically violent manner, often with a cutting tool such as a knife or axe...
  
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