Don’t be fooled by the marketing. The real menace of this film is not the cheap, plastic hairless doll puppet the film is named after…though its eyeless sockets definitely add a creep factor. Hell, it’s not even the puppet’s owner, played to chilling perfection by the ever-reliable John Lithgow…who is again excellent in this film. No, the real villain in this one is aging and the film is all the better for it.

I mean, think about it. How many horror films over the last few decades have really tackled the horrors of aging in a way that feels genuine. Films like The Taking of Deborah Logan, or X just end up turning the old into monstrous serial killers that terrorize the young. Even 2020’s Relic, which really puts aging at its center, contains a certain element of the old threatening youth- though the generational aspect within one family makes it feel far less exploitative.

What all these films are missing are a central protagonist that is…well…old. The Taking of Deborah Logan is grounded in the perspectives of the documentary filmmaker and Deborah’s daughter. X’s protagonist is Maxine, not Pearl. And Relic primarily follows the middle-aged daughter. 

But The Rule of Jenny Pen, set in a retirement home in New Zealand, takes young people almost completely out of the equation. The home’s staff are a part of the film, but they seem to exist in what almost feels like a separate reality. Their dissociation from our elderly protagonist, played by acting aficionado Geoffery Rush, is part of his horror.

And this is what makes the way The Rule of Jenny Pen portrays the horror of aging more honest and unique.

The Rule of Jenny Pen is a psychological horror directed by James Ashcroft. It stars Geoffrey Rush as Stefan Mortensen, a former judge who, after suffering a debilitating stroke, is placed in the Royal Pine Mews care home. 

At first, Stefan treats Royal Pine Mews as a temporary residence and fully expects to return to his old life once he recovers. To help his transition, the home lets him room with semi-celebrity Tony Garfield, a former rugby player who is now burdened by sustained injuries. 

It doesn’t take Stefan long to realize that the entire care home, including Tony, lives in fear of Dave Crealy (John Lithgow), a long-term resident who indulges his sadistic impulses through a grotesque hand puppet he calls Jenny Pen.

But, as Stefan unfortunately learns, Crealy is as cunning as he is cruel, using calculated manipulation to discredit anyone who dares report his torment to the orderlies.

John Lithgow and Geoffrey Rush deliver powerhouse performances in The Rule of Jenny Pen, anchoring the film with a tense, psychological intensity that elevates its horror beyond cheap thrills.

However, the film presents a secondary villain even more insidious than the first: the relentless decline of health that comes with advanced age. And this loss isn’t just medical—it’s existential. His identity, once rooted in intellect, power, and authority, is now under siege by his own body. It is a degradation that runs parallel to the broader theme of institutional helplessness—he’s not just losing control over himself, but over his environment, now ruled by unsympathetic orderlies during the day and Crealy at night.

The Rule of Jenny Pen is a bleak, brilliant meditation on the horrors of aging disguised as a psychological horror film. While its title and marketing lean into the imagery of a grotesque puppet, the film’s real nightmare is far more grounded: the slow erosion of autonomy, dignity, and identity in the face of aging. Director James Ashcroft strips away the usual genre crutches—and replaces them with something much harder to face: time. 

The Rule of Jenny Pen doesn’t just unsettle; it confronts a reality that will await so many of us as we enter our twilight years.