Brendan Reilly, Colin Farrell, a disgraced Irish financier living undercover in Macau, drifts through a city of glittering hotels and neon-lit casinos, where the veneer of aristocracy buys him time from creditors while his life unravels at the edges. He is an inveterate gambler, chasing the rush of a lucky hand as his reputation and finances crumble, and he clings to a wealthy persona to insulate himself from the mounting pressure that follows him from Europe to the Chinese enclave.
Reilly’s erratic presence draws the gaze of casino staff and affluent regulars, who quickly tag him as a gweilo, a white ghost drifting between chandeliers and card tables. Yet the thrill of the games remains a siren call, and he continues to press his luck at baccarat even as his funds thin and his certainty falters. Into this precarious world steps Dao Ming, Fala Chen, a taciturn credit broker whose own burdens weigh heavy as she crosses paths with him. Their meeting is charged with a strange mix of pity, curiosity, and the unspoken lure of a possible alliance.
Dao Ming, guilt-ridden after one of her despondent clients takes his own life, comforts Reilly and leads him to a temple afloat on the water for the first night of the Ghost Festival. The ritual night awakens a strange mutual dependence: she fears luck has deserted her, while he clings to the belief that fortune can still swing in their favor. But dawn reveals a cruel twist—Reilly wakes to find a cryptic number etched on his hand, a sign that his luck may be both real and dangerously misleading.
As his losing streak persists, the case of his impending downfall is taken up by investigator Cynthia Blithe, Tilda Swinton, who gives him a stark ultimatum: repay the embezzled funds by the next day or face deportation and a reckoning in court. In a haze of desperation, he searches for Dao but cannot locate her, and in a bid for assistance he reaches out to a fellow expatriate con man, Adrian Lippett, Alex Jennings. To Reilly’s horror, he discovers that Lippett is working with Blithe, a realization that even his fragile resolve cannot fully resist as thoughts of suicide creep back in. He dines at a restaurant beyond his means, waiting for the clock to run out, and there, in a moment that feels both intimate and unreal, he seems to be reunited with Dao even as his heart betrays him with a severe ache.
When Reilly awakens again, he finds himself in a floating home on Lamma Island where Dao nurses him back to health. The two begin to confide their deepest regrets to one another and grow closer, with Dao suggesting that their shared misfortunes might make them kindred spirits. Left to his own devices, Reilly discovers that the number on his hand is actually the combination to Dao’s locked shed, where sacks of money lie submerged beneath the waves, waiting to be claimed.
The allure of easy wealth proves irresistible, and Reilly cannot resist sinking the cash into the roulette of the casinos. A remarkable winning streak follows, allowing him to pay off his hotel debts, yet the triumph feels hollow—the winnings carry a supernatural energy that leads to his banishment from Macau’s casinos. It is a chilling verdict that convinces him he has become a hungry ghost, an invisible predator wandering through the same world yet never fully part of it.
He engineers a final and colossal bet, an $8 million gambit on a single baccarat hand, hoping to settle his debt with Blithe and to set Dao on a new path. Blithe’s hands are busy elsewhere, but the moment is punctuated by the appearance of Lippett, who reappears in disguise as an Italian prince, matching the bet in a bid for one last win. Reilly’s skill and nerve prevail, and he leaves Blithe with her repayment, sharing a fleeting kiss before marching off with his winnings, intent on finding Dao and writing a different ending to their tale. Grandma, Deannie Ip, offers him a 100-to-1 game as one last test of fortune, but he declines. She then reveals a devastating truth: Dao walked into the Ghost Festival’s waters and drowned on that very first night.
The revelation shatters his perception of reality, and Reilly realizes the encounters with Dao were a cascade of hallucinations spawned by his own guilt and longing. He returns to the temple, discards his lucky gloves, and burns all his money as a final offering to the sea. Standing at the water’s edge amid the festival’s fireworks, his reflection seems to dissolve into Dao herself, leaving him haunted by her presence even as she vanishes from sight. The closing credits leave a lingering image: a surreal, dreamlike dance between Blithe and Reilly in a hotel ballroom, a quiet echo of their intertwined fates and the fragile line between fortune and memory.
