8 Most Tense Horror Movies About Toxic Relationships to Watch After 'Together'

On July 30, the long-awaited body horror Together, that stars real-life married actors Dave Franco and Alison Brie, was released in theaters.

The movie that received 97% on Rotten Tomatoes is a vivid example of how cinema can depict painful yet frighteningly relatable codependency.

If you have already watched Together, we have compiled a list of other excellent horror movies that explore toxic, abusive, and other unhealthy relationship dynamics.

1. 'Midsommar', 2019

IMDb Score: 7.1/10

Following a devastating family tragedy, Dani finds herself emotionally trapped. Her boyfriend, Christian, pulls away but doesn't leave. She clings to him out of fear of being alone.

An opportunity to mend their relationship arises when Christian and Dani travel with friends to a remote Swedish community for a summer festival.

What begins as an ethnographic adventure soon turns into a nightmare full of ancient rituals and hallucinogenic visions.

2. 'Dead Ringers', 1988

IMDb Score: 7.2/10

The Mantle brothers are brilliant gynecologists and inseparable twins. Elliot is charismatic, while Beverly is a quiet recluse who prefers science.

Everything changes, however, when Claire shows up at the clinic. Beverly falls in love for the first time, and this shatters the brothers' idyllic relationship.

Dead Ringers is a body horror by David Cronenberg, a creepy allegory of codependency taken to the limit. Jeremy Irons brilliantly plays two men who share one soul – the twins literally cannot live without each other.

3. 'The Invisible Man', 2020

IMDb Score: 7.1/10

Cecilia escapes her boyfriend Adrian's high-tech home after drugging him and disabling the surveillance systems.

Now living with a friend, Cecilia is afraid to go outside and begins to suffer from persecution mania when she learns that her ex has committed suicide. Soon, however, she begins to feel anxious again, as if Adrian is stalking her.

The Invisible Man is perhaps the most disturbing movie about leaving an abusive relationship. Leigh Whannell accurately addresses a relevant issue that needs to be discussed.

4. 'Gaslight', 1944

IMDb Score: 7.8/10

Paula falls in love with Gregory, and after their wedding, she moves in with him at her late aunt's house. Gradually, however, Paula begins to think that she is going crazy.

Things keep disappearing from the house, the lights turn off by themselves, and strange sounds come from the attic. Each time, Gregory convinces Paula that it's all in her head, but what if there's someone in the house?

George Cukor's movie is an exemplary exploration of gaslighting, released long before the term itself existed.

5. 'Possession', 1981

IMDb Score: 7.3/10

Can a family crisis be the basis for a horror movie? It can, as Andrzej Żuławski demonstrated.

Mark, a secret service agent, returns home to West Berlin after an assignment to be with his wife, Anna, and their ten-year-old son, Bob.

Anna confesses to Mark that she has been cheating on him. With the help of private detectives, Mark manages to figure out who his wife's lover is, but Anna has another, much darker secret.

6. 'Rosemary's Baby', 1968

IMDb Score: 8.0/10

The plot centers on Rosemary and Guy, a married couple who move into a new apartment building where an odd elderly couple lives next door. Ignoring all the signs that she needs to escape, Rosemary becomes pregnant under strange circumstances.

One day, she has a vision of herself sailing on a yacht with Guy, who transforms into a demon and rapes her. A few days later, she finds out that she is pregnant. A series of strange events leads Rosemary to suspect that her neighbors are members of a Satanic cult.

7. 'Mother!', 2017

IMDb Score: 6.6/10

The story centers on a young married couple. The wife is busy arranging their home, while the poet husband is in a creative slump. Everything changes when unexpected guests arrive at their home.

First, a doctor appears on the doorstep in need of temporary housing. Then, his wife shows up, followed by their two adult sons.

The arrival of these uninvited guests disrupts the couple's peaceful life, causing conflict and forcing them to test the strength of their relationship.

8. 'The Invitation', 2015

IMDb Score: 6.6/10

Will, and his new girlfriend attend a party at his ex-wife, Eden's, house. Will and Eden divorced after their son died. After that, Eden met her current partner, David, at a support group for people who had lost loved ones.

The dinner party is supposed to be the first meeting between Will and David, but things don't go smoothly. Will's girlfriend begins to suspect that David is in a cult and that they were invited for a reason.