The protagonist, Camille Leger, a renowned writer residing in Paris, has been estranged from her father, Alexandre, for eleven years. But on this particular night, he unexpectedly calls her, revealing that he's dying and needs Camille to meet him in Tokyo before it's too late. Camille hesitates, feeling a lingering hostility towards her father after their tumultuous past. Their history is laden with trauma, though the audience is only granted a glimpse through a single scene from two decades ago—Camille was blindfolded for a taste test where her father, in his relentless pursuit of perfecting her palate, acted aggressively.
In the present, Camille informs her mother, Marianne, that she's heading to Tokyo solely for answers. Alexandre has arranged for private jet transportation and a plane ticket to sweeten the deal.
As Camille flies to Tokyo, we meet the second protagonist, Issei Tomine, a Japanese wine expert. He meets Sayaka at a swanky bar, arranged by their parents. Both are unenthused about the other; Sayaka even compares Issei to a sniffer dog when he discusses his profession. Issei learns that his oenology (the study of wines) teacher, Mr. Leger, has just passed away. He informs his parents of the date and the professor's demise. Issei's mother doesn't share his passion for wine and is rude to the grieving man.
Upon landing in Tokyo, Camille is met by Alexandre's friend, Luca, who passes on the news of her father's passing. They drive to Alexandre's home, stopping at Luca's restaurant for dinner. It's revealed that Camille doesn't drink alcohol, surprising Luca who calls Alexandre a genius and updates her on tomorrow's plans—attending a will reading, the funeral, and cremation.
Camille spends the night in her father's home and attends the will reading the next day. She meets Alexandre's lawyer, Francois Talion, and Issei, her father's student. Francois explains that Issei was Alexandre's protege and a spiritual son of sorts.
The will is meticulously divided into two components: Alexandre's house in Tokyo, valued at $7 million, and his wine collection, estimated at a staggering $148 million. The entirety of his estate will be awarded to either Camille or Issei, who must engage in a three-round test of wit and endurance to claim it.
The first test presents them with a glass of wine each, and Francois informs them that they have a month to delve into its intricacies - the grape, the estate, and the vintage. Camille, disbelieving it to be a prank, refuses to participate. However, Issei, curious and determined, proceeds to sniff and taste the wine. Camille is compelled to do the same or forfeit her inheritance. As she takes a sip, she gasps and shatters the glass with her hand in a fit of rage. The wine triggers a nosebleed for her, and she storms out of the building, humiliated and betrayed by her father's apparent trickery.
The press follows Camille as she marches towards Luca's van, feeling humiliated and deceived by her late father. Luca defends Alexandre, stating that he didn't know she was a teetotaler. They proceed straight to Alexandre's funeral. The guests bid their final farewells to Alexandre through an open casket before he is cremated. Luca then reveals Alexandre's wine collection to Camille, which he affectionately refers to as his temple. Each bottle is given a funny or personal name, including one that reads "to drink with Camille when she turns 18." This prompts Camille to finally break down and weep.
Before leaving, Luca plays a message from her father recorded while he was in the hospital. He expresses his understanding of being a terrible parent but hopes that this test will help Camille get to know him better. Alexandre urges Camille to train for the test with Philippe to refine her palate and sense of smell, preparing her for the upcoming battle.
Alexandre reminisces about their vacation at the vineyard, and we see a young Camille enjoying blindfold tests from her childhood. She genuinely cherished these moments spent with her father. Something tragic, however, tore them apart, and we are left wondering the specific reasons why.
