'A Knife in the Heart') is a 2018 horror thriller film[4] directed by Yann Gonzalez, who co-wrote the screenplay with Cristiano Mangione.

It was produced by Charles Gillibert and stars Vanessa Paradis, Nicolas Maury, Kate Moran, Jonathan Genet and Romane Bohringer.

[5][6] The lead character is loosely based on Anne-Marie Tensi, a female producer specialized in gay pornography who was active in France in the 1970s and 1980s.

In the summer of 1979 in Paris, Anne, a producer and director of gay pornography, is abandoned by her girlfriend and editor, Loïs.

Karl's death forces Anne to find another actor; she meets a young miner named Nans, who despite being heterosexual agrees to star in her upcoming film.

The woman tells Anne the story of her son Guy Favre, who had a secret affair with his friend Hicham.

Guy takes another man hostage and runs to another film screening, where the audience of gay men attack and kill him as payback for the fear he created in the community.

The website's critics consensus reads, "Knife + Heart wrings giallo-inspired thrills out of a boldly challenging story that defiantly succeeds on its own stylish merits.

"[8] Metacritic, which uses a weighted average, assigned the film a score of 70 out of 100, based on 17 critics, indicating "generally favorable" reviews.

Club gave the film a grade of "B", calling it an "unabashedly queer tribute to the sleazier side of giallo cinema" and concluding: "Gonzalez seems to want us to admire the sex and violence rather than be aroused or frightened by them, a distinction that makes this perverse little thriller more of an intellectual pleasure than a prurient one.