Most Similar Movies to The Entity (1982)
If you are looking for movies like The Entity (1982), you might like movies tagged with keyword : single mother, psychiatrist, parapsychologist, best friend, boyfriend, teen boy, frightening, shocking, los angeles, house, bookstore, hospital, supernatural, rape, mother/son relationship, experiments, therapy, violence, mystery, transformation, 1970s .
No Good Deed (2014), An American Haunting (2005), Dark Water (2002), The Ring Two (2005), Mother's Day (2010), Cape Fear (1962), The Hand That Rocks the Cradle (1992) ... Let's take a look at the following list...

No Good Deed (2014)
An unstable escaped convict terrorizes a woman who is alone with her two children.
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An American Haunting (2005)
Based on the true events of the only case in US History where a spirit caused the death of a man.
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Dark Water (2002)
A mother and her 6 year old daughter move into a creepy apartment whose every surface is permeated by water.
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The Ring Two (2005)
6 months after the incidents involving the lethal videotape, new clues prove that there is a new evil lurking in the darkness.
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Mother's Day (2010)
The sadistic members of a villainous family return to their childhood home to terrorize the new home owners and their guests.
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Cape Fear (1962)
A lawyer's family is stalked by a man he once helped put in jail.
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The Hand That Rocks the Cradle (1992)
After her humiliated husband kills himself, an embittered pregnant widow loses her child, and embarks on a mission of vengeance against a woman and her family.
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I Spit on Your Grave 2 (2013)
When Katie innocently accepts an offer to have new photos taken for her portfolio, the experience quickly turns into a nightmare of rape, torture and kidnapping. Now, she will have to find the strength to exact her brutal revenge.
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Coma (1978)
When a young female doctor notices an unnatural amount of comas occurring in her hospital she uncovers a horrible conspiracy.
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The Babadook (2014)
A single mother and her child fall into a deep well of paranoia when an eerie children's book titled "Mister Babadook" manifests in their home.
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Horns (2013)
In the aftermath of his girlfriend's mysterious death, a young man awakens to find strange horns sprouting from his forehead.
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Half Light (2006)
Rachel Carlson, a successful novelist moves to a small Scottish village to move on with her life after the death of her son. Strange things start to happen when she is haunted by ghosts and real life terror.
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The Stepfather (1987)
After murdering his entire family, a man marries a widow with a teenage daughter in another town and prepares to do it all over again.
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Silent House (2011)
A girl is trapped inside her family's lakeside retreat and becomes unable to contact the outside world as supernatural forces haunt the house with mysterious energy and consequences.
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Donkey Punch (2008)
Things go drastically wrong for a group of British holidaymakers in Spain.
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I Spit on Your Grave (2010)
A writer who is brutalized during her cabin retreat seeks revenge on her attackers, who left her for dead.
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The Amityville Horror (1979)
Newlyweds move into a large house where a mass murder was committed, and experience strange manifestations which drive them away.
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The Host (2006)
A monster emerges from Seoul's Han River and begins attacking people. One victim's loving family does what it can to rescue her from its clutches.
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