Lucifer, Terrance Zdunich, oversees a train packed with condemned souls, including Ms. Merrywood, Briana Evigan, as it is ferried back toward Heaven (the opening note of the story hints at the rhythm of power with the phrase "Shovel and Bone"). In Heaven, God consults with his top enforcer, The Agent, Adam Pascal, while the city’s quiet patrol of translators—officers in Heaven’s police force—separates Merrywood for questioning. Across the divide in Hell, the Ticket Keeper warns Lucifer that the carnies are unprepared for a potential war with Heaven, but Lucifer brushes off the concern and invites a cloaked figure into his presence. He even opens a book of Aesop’s Fables and begins reading "The Filly and The Lapdog," a motif that threads through the narrative with a wry, sly energy.
In a flashback that broadens the story’s world, a fresh batch of Applicants arrives in Heaven, among them best friends June Emilie Autumn and Cora Lyndon Smith. They are greeted with a tour of the celestial premises, a sequence tinted by curiosity and awe ("All Aboard (Everybody's Doing The Ark)"). June makes a bold move and steals a Number 1 armband from The Designer, who keeps the Number 7s toiling in a stark, windowless workshop ("Only By Design"). The pair’s curiosity tempts fate as they press deeper into Heaven, only to be restrained and interrogated by The Translators in a tense moment of punishment and scrutiny ("Good Little Dictation Machines"). The Agent intervenes, and a spark of attraction forms between him and June, drawing hostile attention from The Watchword. God sees the troubling situation and tasks The Agent with seducing June to reveal heresy, a plan that threads tension through the scenes that follow.
The Agent escorts June to a bar, where he lends his voice to a haunting performance of "Down at the Midnight Rectory." God arrives moments later and serenades one of his girlfriends with "Cloud Serenade," a moment that blends power, influence, and personal longing. The Agent’s increasingly complicated relationship with June remains under The Watchword’s watchful eye, and June’s bond with The Agent triggers disapproval from Heaven’s gatekeepers—especially when The Watchword cautions Cora that her lesbian attraction to June contravenes the laws of Heaven. In a pivotal moment, June dares to steal the forbidden Book of the Knowledge of Life and Death, convinced that The Agent’s influence will shield her; her act, however, triggers alarms, and she is beaten by The Translators and hurled down an elevator shaft toward Hell, a moment watched by The Agent who, troublingly, remains still and passive.
Meanwhile, The Librarian orders Cora and the other Applicants to denounce June and spend the night re-shelving Heaven’s vast library, a task that underscores the moral weight of obedience and the pressure of conformity ("Hitting on All Sevens"). June’s journey then leads to the Carnival—a version smaller and weaker than in the past—where she escapes from The Fool [Mighty Mike Murga] and encounters The Twin [Nivek Ogre], who challenges her to a surreal, shapeshifting game that morphs into the forms of Cora, The Agent, and June herself as the game unfolds ("Fair Game"). The loss of the game sends June wandering to the midway and into the presence of Lucifer. Inspired by the encounter, she helps Lucifer reshape the Carnival into a force capable of challenging Heaven, and together they transform her into The Painted Doll [Emilie Autumn] in a dramatic turn of events ("After the Fall").
Back in the present, the Ticket Keeper resists the carnies’ plans to attack Heaven, but the cloaked figure identified as Painted Doll becomes a central piece in Lucifer’s looming war with Heaven. The Ticket Keeper even offers to sacrifice himself for the cause, though Lucifer declines this offer. In Heaven, God sends The Agent to confront Lucifer’s uprising, handing him a book containing the story "The Filly and the Lapdog," a powerful symbol that echoes the earlier scenes and foreshadows the conflict to come.
God then stages a show for the Heaven-dwelling crowd, a public performance titled "Bells of the Black Sunday" that blends spectacle and menace. In Hell, The Agent arrives and discovers Painted Doll, finding her disfigured appearance both horrifying and beguiling; she uses a brief moment of seduction to taunt him before turning to face the other carnies in a defiant scene of provocation ("Hoof and Lap/The Devil’s Carnival"). As battle preparations unfold, Lucifer paints himself with war makeup and readies his forces, while God stands behind a microphone in an empty room, his servants arming themselves for the inevitable conflict.
A brutal reveal arrives in Heaven when Merrywood is exposed as a bruised, transformed figure: it is The Twin in disguise, orchestrating a final twist that flips loyalties and expectations. The Twin then impersonates The Agent and serenades God in a closing note of uncertainty and ambiguity about what comes next ("Songs of Old"). In a post-credits sting, The Twin, still in the agent’s skin, leaves the audience with a haunting sense of unsettled futures and the possibility that the conflict between Heaven and Hell may simply be beginning.
