When a high-strung Vegas wedding planner and his laid-back business partner lose a billionaire’s daughter the night before her wedding, they have 24 hours to track down the runaway bride across Sin City or risk losing their business and their sanity.

SYNOPSIS:

What Happens in Weddings is a high-energy buddy comedy set over a single, disastrous 24-hour countdown in Las Vegas, following two mismatched wedding planners forced into chaos when a billionaire’s daughter vanishes on the eve of her wedding.

Ethan, a meticulous, anxiety-driven gay man in his 30s, wakes up in his Los Angeles apartment beside his husband Daniel, a warm, grounded pediatric nurse. Ethan is consumed with preparation: today could save his failing wedding-planning business. Daniel gently tries to talk about adoption, but Ethan deflects, hiding behind work and perfectionism. He loves the idea of children, but secretly fears he would be a terrible father.

In Las Vegas, Ethan meets his business partner Marcus, a charming, divorced straight man who masks insecurity with humor and improvisation. Their partnership works because they are opposites: Ethan plans, Marcus bluffs. Their current client is the biggest of their careers—the ultra-wealthy Zakhar family, whose daughter Ivana Zakhar is marrying Xander, founder of a wildly successful nightlife app. Ivana is glamorous, magnetic, and unpredictable; her father Viktor Zakhar, a ruthless real estate and casino mogul, treats the wedding as both a family event and a public relations investment. Viktor makes it clear: everything must be perfect.

Despite limited prep time, Ethan and Marcus pull off the planning miracle. Three months later, on the night before the wedding, they celebrate on Fremont Street-until Marcus receives a text from Celeste Zakhar, Ivana’s crystal-loving, wellness-guru mother: Something’s wrong. Come to Ivana’s room immediately.

They arrive to find Ivana’s bridal suite empty, dress untouched, room pristine. Viktor corners Ethan and Marcus in a chilling, Godfather-style confrontation. Ivana must be found and returned within 24 hours, walking down the aisle in white, or Viktor will destroy their careers and sue them into oblivion.

Ethan wants to call Viktor immediately with updates; Marcus convinces him they can fix this quietly. The two begin their frantic search across Las Vegas, following scraps of information and Ivana’s digital footprint. At the Mirage, they learn she ditched her security at a magic show afterparty, where Ethan is dragged onstage as an unwilling volunteer in a disastrous illusion that goes viral. No Ivana.

Worse, when they return to their car, they discover Wyatt Zakhar, Ivana’s whip-smart 11-year-old brother, stowed away. Wyatt has been tracking Ivana through her secret social media accounts and blackmails them into letting him join the search: either he comes with them, or he tells Viktor they lost her. Reluctantly, Ethan and Marcus accept him as their third wheel.

As the hours tick down, the trio careen through escalating Vegas absurdity:

- A drag revue, where Ivana’s best friend reveals Ivana’s fear that marriage will erase her identity. Ethan loosens up for the first time; Marcus gets unexpectedly emotional.

- A high-stakes poker tournament, where Marcus wins big, then immediately loses it all trying to impress a cocktail waitress.

-A narrow escape from Viktor’s henchmen, forcing them to hide in a kitschy Elvis wedding chapel as Ethan’s anxiety spikes and Marcus improvises their survival.

Wyatt complicates everything-and transforms it. He’s reckless, sarcastic, and perceptive, forcing Marcus to act like a responsible adult and pushing Ethan into unwanted but revealing moments of caretaking. In a strip club detour, Ethan ends up having a surprisingly tender conversation about parenthood with a stripper while Marcus hunts for clues. When they turn to leave, Wyatt has vanished.

The search for Wyatt becomes the film’s emotional turning point. At Circus Circus, the men endure a humiliating parenting montage, losing Wyatt, finding him riding a mechanical bull, and finally earning his trust. For Ethan, something clicks: his instincts are good, even without control or perfection.

With six hours left, Ivana’s trail leads them to a desert rave, her “farewell to freedom.” At sunrise, they find her barefoot, drunk, and spiraling, caught between panic and joy. Wyatt rushes into her arms, grounding her. Ethan finally speaks from the heart, admitting that no one is ever truly ready for marriage, kids, or forever, but that fear doesn’t mean failure. It’s a mirror of his own struggle with fatherhood.

Ivana realizes she doesn’t want to run; she wants to choose marriage, not stumble into it. As they prepare to leave, Xander unexpectedly appears; he’s been at the rave all along. The two reconnect instantly, reminding each other why they work. They decide to get married.

With hours to spare, Ivana and Xander impulsively marry at the Little White Chapel, with Ethan, Marcus, and Wyatt as witnesses. Then it’s a mad dash back to Caesars Palace.

With one hour left, the hotel is in chaos. Decorators are exhausted, guests confused, Viktor furious. Marcus distracts Viktor and his security, insisting everything is “right on schedule,” while Ethan pulls off a near-impossible reset of the ceremony.

With ten minutes to go, Ivana walks down the aisle. The vows are messy, funny, and unexpectedly sincere. The wedding isn’t perfect, but it’s real. Viktor, begrudgingly impressed, admits Ethan and Marcus might be “even crazier than my daughter.”

In the aftermath, the weekend’s impact ripples outward. Ethan, newly confident, agrees to begin the adoption process with Daniel. Marcus receives a message from his ex-wife: their child wants to see him next weekend, a second chance he didn’t expect.

What Happens in Weddings ends with Ethan and Marcus rebranding their business as Runaway Weddings, embracing chaos, honesty, and imperfection, and proving that sometimes the best celebrations come from everything going wrong