In 1980s Los Angeles, a group of affluent young men, inspired by their ambitious friend Joe Hunt, devises a get-rich-quick scheme that spirals into chaos through a Ponzi operation. Unfortunately, the venture takes a tragic turn when Joe and his companion Tim Pitt find themselves entangled in the murder of investor and swindler Ron Levin.
Dean Karny, a smooth-talking salesman who shared a prep school experience with Joe, unexpectedly reunites with him at a hotel in January 1983—six years post high school. As Dean looks to sell a luxury car, he spots Joe across the room, pitching a financial scheme. Despite wearing the cheapest suit, Joe always managed to dazzle everyone with his intellect.
Having come from a modest background, Dean was sent to a prestigious institution, The Harvard School for Boys, where he befriended affluent peers including Joe, who attended on a scholarship and had little social capital. Dean swiftly learned that survival in this elite circle required the art of "faking it till you make it." With natural charm and cunning, he mingled with the privileged offspring of Hollywood stars and true royalty.
Eager to join forces, Dean proposes that they create an investment fund, with Joe utilizing his intelligence while Dean gathers the necessary capital. To kickstart their plans, Dean invites Joe to Charlie Bottoms's lavish birthday bash. Here, Joe meets Scott Biltmore and Kyle Biltmore, wealthy twins and Harvard graduates, who seem ripe for investment. However, Joe's initial pitch falls flat and leaves him disheartened.
After selling a Corvette for Kyle, Dean learns that Kyle is willing to lend $10,000 for investment. However, it turns out Kyle had no idea that the money had originated from Dean himself, which leads Joe to misrepresent the profits back to Kyle, setting a deceptive precedent. During the next gathering, Joe weaves an elaborate tale of success, appealing to the insecurities of the wealthy youths about their family legacy, ultimately persuading them to invest in the Billionaire Boys Club (BBC).
Joe's rise continues as he meets Ron Levin, a suave high roller with deep pockets, who takes an immediate liking to him. Ron mentors Joe on the art of perception, revealing substantial truths about the business world. In a bid to entice further investment, Joe aims to leverage the talents of aspiring artist Sydney Evans, a student of Andy Warhol.
With funding from Charlie and the Biltmore twins, Joe and Dean hatch a scheme involving the import of luxury cars. However, it's not long before Joe's moral compass begins to waver as they escalate their plans. Ron ultimately invests $4 million, but despite Joe's initial excitement, he grapples with the ethical implications of their burgeoning Ponzi scheme.
The duo's next audacious gambit involves acquiring a company burdened with debt while attempting to mask the liabilities surrounding it. Unfortunately, Joe's world begins to unravel when he realizes that Ron has deceived him, leading Joe into a precarious situation with the authorities. Tensions escalate dramatically, culminating in a shocking confrontation between Joe, Tim, and Ron, resulting in a haunting crime scene.
In a desperate bid to salvage their ambitions, they turn to Izzy, a young man embittered by his father's wealth. When attempts to gain access to hidden diamonds unravel, chaos ensues, leaving Joe in a perilous position. Ultimately, Joe, now ensnared in a web of accusations, is arrested for murder while Dean, seeking self-preservation, cooperates with law enforcement. The fallout is severe, culminating in Joe receiving a life sentence for the treachery that unfolded, a once promising future turned to ashes.
