In the neon-drenched underworld of 1970s Paris, a masked killer stalks the performers of a struggling gay porn studio, turning each new film production into a potential crime scene. Directed by Yann Gonzalez, this stylish and lurid thriller follows producer Anne, played by Vanessa Paradis, who is desperate to salvage both her business and her tumultuous relationship with her editor lover Lois. As the body count rises and the police show little interest, Anne becomes an amateur sleuth, diving deeper into the city's gritty nightlife to unmask the assailant whose weapon of choice is a bizarre, glittering blade. Blending slasher suspense with a poignant drama of desire and obsession, Knife+Heart crafts a hypnotic, synth-scored mystery where the search for the truth becomes a surreal and dangerous journey through the margins of a forgotten era.