Cite De La Peur -
It’s not a “long story” in the literary sense (like a novel), but rather a parody of crime thrillers and film industry tropes. However, I can tell you the as a long, detailed narrative.
It sounds like you’re referring to (known in English as The City of Fear ), a cult French comedy film from 1994 directed by Alain Berberian, starring the legendary comedy trio Les Nuls (Alain Chabat, Chantal Lauby, and Dominique Farrugia). cite de la peur
Panic erupts. Serge, seeing an opportunity for publicity, decides to milk the event. Meanwhile, a real, incompetent, and utterly ridiculous police detective named (Dominique Farrugia) is assigned to the case. Simon is terrified of everything, has zero deductive skills, and is secretly in love with Agnès. The Investigation (Such as it is) Simon, Serge, and Agnès form an unlikely trio. Simon’s "method" of investigation involves guessing randomly and hiding behind furniture. Serge is only interested in promoting his film. Agnès is blissfully unaware of the danger, more concerned with her acting "craft" (which consists of reciting lines like "I’m sad. Very sad. I’m going to eat an apple"). It’s not a “long story” in the literary
Simon accuses Serge. Serge, flustered, admits he wrote the script. But then Serge accuses Agnès. Agnès accuses the caterer. It’s a mess. Finally, through a series of absurd deductions (including a clue about a rare type of breadcrumb found at every crime scene), Simon realizes the truth. Panic erupts
The killer is (played by the director of the real film, Alain Berberian, in a cameo). Why? Because the director was furious that Serge had rewritten his script, turning his serious psychological thriller into a stupid horror-comedy. So, he decided to literally kill the film by murdering people in the most ridiculous way possible—with a baguette—to make the whole project a laughingstock.
In the final confrontation, the director (in diving mask, holding a baguette) explains his elaborate, pretentious motive involving the death of cinema. Simon, trembling, tries to arrest him but trips. Agnès, by pure accident, knocks the director unconscious with a falling prop tombstone. The film ends exactly as it began: with a screening. Red Is Dead becomes the biggest hit of the year, not because it’s good, but because people think the baguette murders were a genius marketing campaign.