A quick factual note first. Anniversary is a 2025 American film directed by Jan Komasa, written by Lori Rosene-Gambino (story by Komasa and Rosene-Gambino). It later started streaming on Netflix in the UK and Ireland on 1 February 2026.

What happens in The Anniversary

The 25th anniversary dinner – where the seed is planted

We begin with the Taylor family gathering for the 25th wedding anniversary of Ellen Taylor and Paul Taylor. Ellen is a liberal professor at Georgetown. Paul is a restaurateur.

Their adult son Josh arrives with his fiancée, Liz Nettles. Liz is nervous enough that she practises greetings in a mirror before meeting everyone. It’s a small detail, but it matters. We are being shown that Liz is performing, preparing, managing impressions.

Ellen recognises Liz. Liz used to be her student, and she left Georgetown after Ellen challenged Liz’s ideas in a paper that argued for a one-party state.

Liz gives Ellen a book, written with Josh’s help: “The Change: The New Social Contract.” The cover shows an American flag with stars placed in the centre, presented as a symbol of Americans uniting in the political centre. As Liz is leaving, she tells Ellen privately that she is not afraid of Ellen anymore.

That moment lands like a quiet threat. Not shouted, not dramatic, just calmly delivered. I first thought it was only a personal power play between two women. Then I watched the story unfold and changed my mind. It’s also Liz signalling that the world Ellen relied on, universities, debate, norms, is losing its power.

Thanksgiving – “The Change” becomes popular, and popularity becomes pressure

Two years later, the family meets again. Now The Change is influential. Liz is pregnant with twins. The atmosphere is different.

Ellen vandalises a neighbour’s “Change” flag and gets filmed. The video goes viral. That’s one of the film’s key moves: it turns a private moral reaction into a public “incident.”

This is where the psychology becomes obvious. Once something is public, people stop asking, “Is this right?” and start asking, “How will this look?” Fear of social punishment becomes a steering wheel.

The time jumps – and the family starts to fall apart

The story jumps forward and we see the costs stacking up.

Ellen loses her job at Georgetown.

One daughter, Anna, is a lesbian comedian. After mocking The Change in her standup, she gets attacked and goes into hiding.

Another daughter, Cynthia, is married to Rob. Cynthia privately tells Ellen she had an abortion because she’s afraid to bring a child into this new world. Rob, in grief and fury, drives off and leaves her behind.

Their youngest daughter, Birdie, is drawn to science and activism. Liz offers Birdie a job at Cumberland Corporation studying virology. Ellen threatens Liz.

A lot of viewers search “what is Anniversary about” because at this point the film stops feeling like a straightforward thriller. It becomes a slow, tense portrait of a family system under stress, where each person chooses a survival strategy, and those strategies clash.

The Enumerators – “just questions”, but really a warning

Then come the Enumerators, census-takers who enter Ellen and Paul’s home. They ask questions designed to find Anna. They show photos of Birdie at a protest and threaten jail. Ellen capitulates and publicly endorses The Change. Birdie says Ellen has sold out.

The 30th anniversary – catastrophe, betrayal, and the ending people Google

At the 30th anniversary party, Liz appears dressed in red, like Ellen in the first anniversary scene. Liz asks Ellen privately to help with Josh’s strange behaviour. Ellen slaps her.

A clown arrives. It turns out to be Anna, in disguise.

Then the TV news announces a horrific bio-weapon attack at Cumberland’s Washington, D.C. headquarters, where Birdie works. Birdie appears on camera and performs a suicide bombing. Ellen and Paul are devastated.

Josh reports Anna’s location to the police. Cynthia stabs Josh (not fatally), runs outside holding a bloody knife, and is shot by police. Police also shoot at Anna as she runs and dives into the sea.

Police put bags over Ellen and Paul’s heads and take them away. Josh asks officers to keep his parents together. They ignore him. A policeman asks Liz what to do, and she says Josh is with his parents. The police remove the Taylors.

Liz looks at an old family photo, appears distraught, then shows a small smile.

What is unclear, and I’m not going to pretend otherwise, is exactly how much Liz planned, or what she knew, beyond what the film shows. The film gives us behaviour and outcomes, not a neat confession.

What “The Change” actually is

The film frames The Change as a movement that grows into a controlling system, with intimidation, surveillance, and punishment for dissent woven into everyday life.

If you want a clean definition for what that kind of system looks like, Britannica describes authoritarianism as blind submission to authority and repression of individual freedom of thought and action, with regimes concentrating power and not affording full civil liberties or political rights.

The film never asks you to be an expert on the US constitution. It asks you to notice the emotional trade that keeps happening, again and again. Safety in exchange for freedom, belonging in exchange for truth, peace at the table in exchange for someone else’s dignity.

The psychology that makes the story believable

Obedience – why the Enumerators work

The Enumerators do not burst in like film villains. They ask questions. They carry paperwork. They look official.

That matters because people often obey authority even when it clashes with conscience. Stanley Milgram’s famous obedience experiments in the early 1960s tested willingness to follow an authority figure’s instructions to harm another person. A high proportion of participants went very far under instruction, even when uncomfortable.

The film’s point is not “everyone is weak.” It’s that authority plus fear can override your usual self.

Ellen’s endorsement of The Change reads like that. She does not look convinced. She looks cornered.

Conformity – why “everyone around them” starts repeating the same language

As The Change becomes popular, the social cost of disagreeing rises. People begin to take cues from the room.

Solomon Asch’s conformity experiments studied how individuals yielded to a majority group, even on simple judgement tasks. The basic insight is that group pressure can bend what people say out loud, even when they privately doubt it.

In the film, that pressure shows up in flags, public sentiment, career consequences, and the way family members start policing each other’s speech.

Moral disengagement – “I’m just doing my job”

One of the most chilling features of authoritarian systems is how ordinary work becomes part of harm.

Psychologist Albert Bandura wrote about moral disengagement, the cognitive mechanisms people use to turn harmful conduct into something that feels acceptable, by sanitising language, shifting responsibility, or calling cruelty “necessary.”

The Enumerators are a perfect example of “harm delivered through procedure.” Their tone stays civil. The threat stays real.

Family under pressure – why everyone becomes a different version of themselves

This is where the film hurt me a bit, if I’m honest. I expected a political allegory. What I got was a study of how fear scrambles a family’s roles.

You can watch the Taylors split into survival strategies:

• Anna becomes the resistor and the scapegoat.

• Rob adapts and joins The Change, perhaps because certainty is easier than ambiguity.

• Cynthia collapses into pills, then lashes out, then dies in chaos.

• Ellen tries to be the moral anchor, then bends under threat.

• Josh shifts into someone “blood-chilling,” as one major review put it, and chooses loyalty to the new order over his sister.

• Liz plays long-game power, calm on the surface, strategic in outcomes.

  
  

A grounded read of the ending, without pretending we know more than the film shows

People want a tidy answer: “Was Liz evil?” “Was Josh brainwashed?” “Was Birdie a hero?” The film does not hand us a simple label, and I think that’s deliberate.

What we can say, based on what is shown:

• Birdie commits a bombing after the Cumberland bio-weapon attack is announced.

• Josh calls the police on Anna, and that triggers the violent cascade that follows.

• Liz influences the final removal of the family when an officer asks what to do and she says Josh is with his parents.

• Liz ends with a small smile after looking at the family photo, which strongly suggests satisfaction or at least relief, though the film does not explain her inner thoughts.

If you’re watching this on Netflix and thinking, “I need anniversary ending explained because I feel unsettled,” that’s a normal reaction. The film is built to leave you sitting in moral discomfort, rather than offering a clear lesson and a bow on top.

What the film leaves you with

I think Anniversary is trying to show something uncomfortable but useful.

Large political shifts are made from small human moments: a flag in a garden, a viral clip, a polite official at the door, a child you’d do anything to protect, a partner you can’t recognise anymore. And once a system trains people to trade truth for safety, even good people can start doing awful things, while still feeling like decent citizens.