In a dilapidated apartment building in a post-apocalyptic France, food is in short supply and grain is used as currency. On the ground floor is a butcher's shop, run by the landlord, Clapet, who posts job opportunities in the Hard Times paper as means to lure victims to the building, whom he murders and butchers as a cheap source of meat to sell to his tenants. Following the murder of the last worker, unemployed circusclown Louison applies for the vacant position. During his routine maintenance, he befriends Clapet's daughter, Julie, a relationship which slowly blossoms into romance. Louison proves to be a superb worker with a spectacular trick knife and the butcher is reluctant to kill him too quickly. During this time several of the tenants fall under Louison's boyish charms, worrying others who are more anxious for their own safety should they require meat. Aware of her father's motives, Julie descends into the sewers to make contact with the feared Troglodistes, a group of vegetarian rebels, whom she persuades to help rescue Louison. During the apparent butchering of an old woman, the Troglodistes attack but are repelled, and Clapet, with the unsympathetic tenants, storms Louison's room in an attempt to murder him. Louison and Julie resist by flooding themselves, floor to ceiling, in an upper floor bathroom until Clapet opens the door releasing the flood and washing the attackers away. Clapet returns with Louison's knife and inadvertently kills himself. Louison and Julie play music together on the roof of the now peaceful apartment building.
The film was received well critically. Variety called it "a zany little film that's a startling and clever debut." Empire called it a "fair bet for cultdom, a lot more likeable than its subject matter suggests, and simply essential viewing for vegetarians". Not all reviews were positive, however, with The New York Times saying "its last half-hour is devoted chiefly to letting the characters wreck the sets, and quite literally becomes a washout when the bathtub overflows." Review aggregator Rotten Tomatoes gave it an approval rating of 89% from a total of 54 reviews with an average rating of 7.76/10. The website's critical consensus reads, "Director Jean-Pierre Jeunet deftly combines horror, sci-fi, and humor in Delicatessen, a morbid comedy set in a visually ravishing futuristic dystopia." Metacritic gave it 66 out of 100 out of a total of 17 reviews, indicating "generally favorable reviews".