Determined to stop the murderer of Céleste, a young model, Louise accepts the help of Doctor Paul, an eccentric forensic scientist, and Roman Ketoff, an attractive maverick journalist, taking the risk of endangering the secret of her double identity. Louise plunges into the night world, going so far as to pose nude for a painter she suspects of being the murderer. She also befriends Kiki de Montparnasse, famous muse of the Paris art scene, who invites her to an evening at Jenny Meyer's, a rich eccentric American. There, she discovers the screening of short pornographic films which has shocking content for unexpected reasons.
—Anonymous