Physicist Jim Beale, in partnership with his colleagues Chuck and Matty, has made a groundbreaking leap in the field of time travel by designing a machine that can manipulate time itself. This revolutionary process relies on the creation of a wormhole, formed over two significant runs: the first creates one half of the tunnel, while the second run completes it. However, this endeavor comes with a host of dangers and steep costs, primarily involving radioactive materials sourced from KMC, a company owned by ambitious venture capitalist Klaus Meisner.
The stakes are incredibly high; any mismanagement of the radioactive materials could lead to a catastrophic explosion. During the initial test, Beale receives a peculiar gift from the wormhole: a genetically enhanced Dahlia flower. Though he regards it as proof of his success, he lacks the necessary radioactive materials for a crucial second test, which Meisner is reluctant to relinquish without claiming a significant share of ownership. In a tense negotiation, Meisner demands 50% ownership of the venture, but ultimately, he only walks away with 49%.
After the first round of testing, Beale crosses paths with Abby Ross, who engages him in conversation that feels oddly intimate, hinting at her deeper knowledge of his research. Despite his growing attraction to her, Beale's instincts trigger a sense of unease regarding her true motives. His concerns escalate when Chuck calls Beale, urgently warning him that Abby cannot be trusted and that the results of the initial test were far more extraordinary than they appeared. Beale quickly retreats from Abby, only to find that Chuck is frustratingly tight-lipped about the situation.
As Beale's relationship with Abby develops, he increasingly ignores his warnings, becoming entwined in her life. The fragile fabric of their connection unravels when Chuck's suspicions are confirmed; Abby reveals her true allegiance to Meisner, leveraging her knowledge of the Dahlia to extract further ownership from Beale, leaving him with just a meager 1%.
Facing a dire situation, Beale embarks on a reckless journey during the second test, propelling himself through the machine and into the wormhole. With a defiant declaration—> "You may own the Dahlia, but you don't own me."—he stakes his claim on something that belongs solely to him as he is hurled back one week into the past, right to the moment of the first test. As he navigates this "second run" alongside Meisner and Abby, Beale becomes convinced that he can outsmart them and protect his work from slipping away.
Ironically, Abby has genuinely developed feelings for Beale, concocting a fictionalized account of him in her journal after discovering an article about his research. This realization alters his perspective, serving as a stark reminder of the thin line that separates reality from illusion. However, complications intensify as Beale begins to suffer physical ailments, feeling increasingly unwell whenever he is near his double, Jim Prime—the original version of himself who existed before the wormhole.
Desperate and determined, Beale discloses his situation to Chuck and Matty, imploring them to help keep Jim Prime unaware of his presence. Together they devise a plan to shield Beale from Jim Prime, attributing the strange interactions of the prior week to Meisner's manipulations. Yet, Beale's condition deteriorates, sparking a surge of jealousy as he witnesses Jim Prime's unwavering doubts about Abby, who is perpetually unrepentant.
As Beale explores Abby's journal, now in Matty's possession, he discovers perplexing discrepancies that confirm his suspicions: he has not merely jumped back in time but has instead traversed into a parallel universe, slightly shifted from his original timeline. The reality sinks in that two versions of Beale cannot coexist in the same universe. Thus, the "second run" Beale is set on a tragic collision course, destined to vanish while Jim Prime remains.
With the immovable date of the second test on the horizon, Beale stumbles upon a timeline that features a dormant Jim, cast adrift in the uncertainty of life and death. Undaunted, he returns to the Grand Hotel where the shocking truth emerges: Abby's betrayal was not born of malice, but rather a calculated move to secure more radioactive materials, ultimately sacrificing Beale’s life in the process. The second test unfolds with an eerie sense of déjà vu, sealing Beale’s fate irreparably.
In the wake of the experiment, the absence of Beale leaves an unoccupied chair at the Grand Hotel as a haunting reminder of his loss. Meanwhile, Abby waits alone in a cozy café only to be approached by a stranger who bears an uncanny resemblance to her muse, John Bain—who is now, rather intriguingly, Jim Prime. Their meeting stirs a subtle attraction, hinting at a new beginning that is intertwined with the complications of their converging timelines.
