An in-depth analysis of IT: Welcome to Derry. We explain the series’ true meaning, why Pennywise feeds on human corruption, and the terrifying nature of the 27-year cycle.
Andy Muschietti has done it again. With the HBO series IT: Welcome To Derry, he has flooded the world with new insights, themes for debate, and fresh speculations, feeding Stephen King fans plenty of material to dig into. This is because the series, released in 2025, is far more than just another perspective on the novel, and certainly more than a story about an evil clown terrorizing a town. IT: Welcome To Derry is a stimulating analysis of human fear and the society we live in.
Of course, there is a supernatural entity that crashed into Derry at the dawn of time and terrorizes its citizens cyclically, every 27 years. But the evil we observe in Derry is not exclusively the result of IT. The entity is not the root cause of evil in the world, but rather an effective co-protagonist—one that uses, shapes, and directs humanity’s innate wickedness for its own purposes.
There are many reasons why the story of IT is still so terrifying. Let’s take it step by step.
The Human Factor: How Evil Feeds on Us
The history of Derry is paved with tragedy. This is the most critical element introduced by the HBO series: right from Season 1, we understand that every cycle revolves around atrocities committed by society, completely independent of IT.
In the 1962 cycle, we witness two highly symbolic plotlines: the Black Spot Fire, perpetrated by a racist mob against the local Black community, and the plan of General Shaw, who intends to use the army’s mission not to contain IT, but to unleash it—weaponizing fear to tame the entire country during the Cold War.
In both instances, the entity does not force humans to be evil. That wickedness exists a priori in their hearts. There is a crucial line delivered when Major Hanlon tries to defend the constitutional rights of American citizens:
“This isn’t America. This is Derry.”
The town exposed by the TV show is a place corrupt from the start, characterized by mutual hatred and aggression. By focusing on humanity’s capacity for natural evil without supernatural aid, IT: Welcome To Derry perfectly adapts a central theme of Stephen King’s literature. The original books are filled with examples of this philosophy: think of novels like Needful Things, Carrie, and Misery, up to modern works like The Institute. In King’s universe, human evil is a reality, and demonic entities merely feed on it, multiplying its effects. For the protagonists, the enemy is a ruthless combination of sick humanity and supernatural malevolence.
From this perspective, IT represents a parasite. It feeds on the evil already inherent in Derry, inserting itself into a fertile environment created by men. Derry was sick before IT arrived; it is simply the ideal environment where evil can thrive, unintentionally aided by humans.
This means the supernatural isn’t the only thing that scares us. As we discover in the series, institutions, society, hatred, and the indifference rooted in the citizenry are just as destructive as the monster itself.
The Nightmare That Never Ends: Why IT Is So Scary
Let us consider the reasons why the entity is so terrifying. IT does not merely insert itself into the existing evils of human society; it does so by leveraging the childhood fears within us all.
The fact that IT interacts with a group of children in practically every cycle is significant: IT represents our innate fears in every possible form. The unsettling clown is merely its most effective mask, but we also see it as a malevolent old woman, a giant spider, a finger emerging from a drain (a nod to Stephen King’s short story “The Moving Finger”), a demonic family, or a dragon. It is the synthesis of Stephen King’s stylistic signature: things that scare us as children, but which have terribly real consequences in our adult lives.
Furthermore, IT is a source of fear that returns cyclically. Neutralizing it as a child solves nothing, because its return is triggered right on schedule when we are grown, forcing us to face it once again. It is no coincidence that in every cycle, the realistic goal is never to kill it, but to “contain” it: to force it back into its long slumber, delegating the next battle to another generation.
The Cycle as Generational Trauma
The series IT: Welcome To Derry adds a crucial piece to the inevitability and invincibility of the monster: IT knows that in the future it will die, at the hands of the group of adults we observe in the 2016 cycle of IT Chapter Two.
However, for the entity, time does not flow linearly. IT is aware of all past, present, and future events simultaneously. This explains why, in the 1962 cycle, it targets the children who will eventually give birth to the generation that kills it. As we see in Episode 8 of Season 1, Marge Truman will become Margaret Tozier (her married name) and will give birth to Richie, whose hand will be one of those to finally destroy IT. The line where the entity wonders “what Marge tasted like” takes on a chilling new meaning: it was an attempt to erase the future.
With IT, not even death is definitive. The monster is capable of moving backward through time, again and again, to prevent its future neutralization. This is the temporal direction the HBO series intends to explore, with Season 2 set in the 1935 cycle.
The end is never truly the end. Every generation tries its best to defeat IT, but they are rarely supported by those around them. Children are surrounded by parents who do not always protect or help them; adults are immersed in a hostile society and institutions that are indifferent—or worse, actively malicious. Defeating IT is a war against everyone. This makes the battle eternal and, in some ways, hopeless—a form of generational helplessness that is terrifying in its inevitability.
The Future of Fear: the Cycle Continues in Season 2
IT: Welcome To Derry ultimately teaches us two critical lessons. The first is that you cannot defeat evil with a magic formula or a silver bullet. To neutralize it, we must change as human beings, heal our natural wickedness, and sever the lifeline that allows the entity to feed upon it.
The second lesson is a direct consequence of the first: as long as humanity is flawed—marked by generational trauma and hindered by a lack of cooperation and mutual protection—IT will always be a formidable presence in Derry.
The stage is already set for Season 2: we will be immersed in the previous cycle, the one from 1935, featuring the Bradley Gang Massacre that was already teased in Season 1. It will be up to yet another generation to shoulder the burden of the battle against IT, as Lilly explains to Marge in her final line. IT will still be there: a mirror forcing us to confront the darkness in our own hearts.
