Workaholic Walter Davis is under immense pressure to secure a deal that would let his employer manage the vast assets of Japanese industrialist Yakamoto. With a celebratory dinner on the horizon, he urgently needs a date, and his brother Ted offers a blind date with his wife Susie’s cousin Nadia, though Ted and Susie caution that Nadia should not drink alcohol because she can lose control.
When Walter meets [Nadia], he finds her beautiful, kind, and alluring, but her jealous ex, David, immediately tests Walter by attacking him. After narrowly avoiding a confrontation, Walter takes Nadia to a recording studio to hear his musician friend and reveals that he sacrificed his own dream of becoming a musician for a steady job. Despite the prior warnings, he shares a champagne toast with her, opening a door to trouble.
At the dinner with Yakamoto, Nadia’s inhibitions melt away and she acts on impulse: she calls out a colleague who tries to seduce her, mocks a waiter who irks her, and accidentally sprays Walter’s boss with champagne. Yakamoto, who expects women to be quiet and subservient, grows frustrated as Nadia destabilizes the room. She even convinces Yakamoto’s meek wife to divorce him and take half his assets, a move that sabotages the deal and leads to Walter being fired.
Walter tries to drive Nadia home, but David’s pursuit continues, thwarting their attempts to find a quiet exit. Upset, Nadia flees to a disco, with Walter in pursuit; the pair find common ground again while dancing, but David arrives and triggers a bar brawl. They escape, and Nadia proposes going to a friend’s party, but Walter insists on taking her to the address she provided. Once there, misfortune strikes—the house has been towed away, his car is stripped while he’s distracted, and muggers move in, even hiding a gun as the police later arrive.
Nadia wakes up sober and laments the consequences of the night, while Walter becomes increasingly unhinged and battles David in a final chase. The car chase ends in a crash, and the two face arrest as the night spirals out of control. Nadia posts a glimmer of hope when she helps secure Walter’s release, and she confesses that she thought he was someone she could fall in love with—someone who seemed genuinely sweet and generous.
As the wedding inched closer, Nadia’s fate veers again when David’s family hosts the ceremony and Walter tries to win her back. Nadia enlists David’s help as a defense attorney, in a twist that sees David’s father, Judge Harold Bedford, influence the outcome so that Walter’s fate rests on David’s relocation. Susie sends Walter a note from Nadia, hinting at missing him and urging him to pick up his guitar again.
On the eve of the wedding, Walter secretly peddles a box of chocolates laced with brandy to Nadia at the mansion where the ceremony will take place. Nadia, unaware of the trap, becomes drunk and disrupts the wedding, choosing love over David as she declares she will not marry him. Walter arrives just in time to share a kiss with Nadia, eliciting cheers from the crowd and anger from David.
Sometime later, Walter and Nadia begin a new chapter, honeymooning on a sunlit beach. He tunes his guitar for her, while a chilled Coca-Cola waits in a champagne bucket—signaling a hopeful and quieter closeness after the stormy events that tested them.
