Poisons or the World History of Poisoning

Katya betrays Oleg during a friendly dinner with their new neighbor Arnold Sharapov. While the exact motivation isn't explicitly stated, the betrayal triggers the entire chain of events in the film, leading to the breakdown of their marriage and setting Oleg on his path of moral conflict.

The warm, ordinary evenings in the beginning hint at hidden tensions beneath the surface that eventually surface.

Prokhorov is a pensioner who meets Oleg at a dim bar. He speaks matter-of-factly about his own crime, slipping poison into his wife's yogurt as punishment for her infidelity. He carries a small collection of poisons, which he offers to Oleg as a solution to his marital problems, presenting himself as a mentor in the art of revenge.

Zoya, Arnold's wife, expelled her own unfaithful husband from their home, similar to how Katya's betrayal led to the breakdown of her marriage. This parallel creates symmetry between the two couples and brings Zoya and Oleg together as they both deal with betrayal.

The building's entanglements connect all characters, with the first days foreshadowowing the relationships to come.

Throughout the film, Oleg's daydreams feature vivid visions of Pope Alexander VI Borgia, a historical figure known for scheming and poisoning. These fantasies are inspired by Prokhorov's tales of famous poisoners and serve as a motif representing power, betrayal, and the peril of following dangerous echoes from the past. The imagery underscores the film's themes of revenge and moral corruption.

After seeking counsel from Prokhorov and receiving increasingly devious advice, Oleg ultimately decides to step back from the cycle of revenge. He rejects escalating harm and refuses to let the past dictate his future. This moral choice allows him to pursue a different path with Zoya, breaking the cycle of bitterness and choosing love over vengeance.

Oleg confronts the moral abyss and hesitates, showing his internal struggle before ultimately choosing peace.

Arnold and Katya invite Oleg and Zoya to dinner with the plan to serve them contaminated burgers, designed to sever the growing bond between Oleg and Zoya. However, the film shows that this revenge plot ultimately fails because Oleg has already decided to step away from the cycle of revenge and refuses to participate in further escalation.

After a family quarrel forces Oleg to leave his home, he becomes a guest of Zoya, who has already expelled her unfaithful husband Arnold. The two find comfort in each other while navigating their broken loyalties around them. They gradually fall in love and decide to build a life together, finding hope in their shared situation.

Zoya's expulsion of Arnold mirrors Katya's betrayal, creating a natural connection between the two displaced spouses.

Prokhorov recounts historic poisonings featuring figures like Cesare Borgia and Emperor Caligula, connecting these tales to the town's dark past. These stories serve as both dark comedy and thematic foreshadowing, exploring the film's motifs of power, betrayal, and the dangers of revenge. They also fuel Oleg's daydreams and internal conflict about whether to follow a similar path.

Prokhorov matter-of-factly reveals that he punished his wife for infidelity by slipping poison into her yogurt. This story serves as the catalyst that plants the dangerous idea in Oleg's mind, demonstrating the film's dark humor about revenge and the consequences of betrayal.

The two couples ultimately dissolve their relationships. Arnold and Katya divorce, as do Oleg and Katya. Oleg and Zoya begin a life together built on love and shared interests, free from the bitterness that had threatened to fracture them all. The ending is bittersweet, relationships are broken but a new, loving one is formed, ending the cycle of revenge.