
Evil hides where it is least expected. Ninon, a spirited hotel manager, teaches self‑defense classes to her terrified elderly neighbors. Meanwhile, Daiga, a newly arrived Lithuanian actress in Paris, becomes fascinated by the life of a mysteriously beautiful drag performer, drawing her into an unsettling world.
Does I Can’t Sleep have end credit scenes?
No!
I Can’t Sleep does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of I Can’t Sleep, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Alex Descas
Théo

Laurent Grévill
Doctor

Solveig Dommartin
Young Blonde Woman

Catherine Frot
Woman with Bookcase

Béatrice Dalle
Mona

Jacques Nolot
Spectator at the Cinema

Yekaterina Golubeva
Daïga Bartas

Line Renaud
Ninon

Didier Flamand
Police Inspector

Daniel Isoppo
Arresting Detective

Serge Abattucci
Antilles' Inspector

Jean-Paul Bonnaire
Arresting Detective

Antoine Chappey
Car Buyer

Dani
Seamstress

Arnaud Carbonnier
Neighbor

Danielle van Bercheycke
Fleur

Manuela Gourary
Mona's Mother

Jean-Quentin Châtelain
Inspector of the 18th District

Ysé Tran
Theatre Actress

Fabienne Mai
3rd Victim

Thierry Flamand
Police Officer in Helicopter

Philippe Besson
Police Officer at Accident

Philippe Kara-Mohamed
Police Officer at Accident

Marion Stalens
Neighbor

Irina Grjebina
Mina

Sophie Simon
Mona's Sister

Francis Lemonnier
Café Boss

Hilton McConnico
Doctor's Friend

Lionel Goldstein
Inspector of the 18th District

Tolsty
Vassili

Denise Dax
Lady at Karate

Richard Courcet
Camille

Vincent Dupont
Raphaël

Ira Mandella-Paul
Little Harry

Alice Hurtaux
2nd Victim

Serge Esposito
Commissioner inspector

Kamil Tchalaev
Sacha

Simone Bonte
Ninon's Mother

Jean-Marc Emier
Babysitter

Arlette Havet
1st Victim

Muriel Foures
Young Redheaded Woman

Sohrab Heshmati
Dark-Haired Young Man

Hopi Lebel
Theatre Decorator

Madame Petit
Concierge
Discover where to watch I Can’t Sleep online, including streaming platforms, rental options, and official sources. Compare reviews, ratings, and in-depth movie information across sites like IMDb, TMDb, Wikipedia or Rotten Tomatoes.
Read the complete plot summary of I Can’t Sleep, including all major events, twists, and the full ending explained in detail. Explore key characters, themes, hidden meanings, and everything you need to understand the story from beginning to end.
Daiga, a Lithuanian woman with little money, arrives in Paris with dreams of becoming an actor, but soon finds herself taking a job as a maid in a hotel owned by a friend of her great-aunt. The arrival is quiet but loaded with hesitation, as Daiga steps into a city that feels both familiar and intimidating, where every corridor could hide a new challenge. Daiga
In a parallel thread, Theo is navigating a turbulent home life. He wants to leave Paris for Martinique with their young son, yet his wife resists the move, preferring to stay in the city they know. The tension at home is palpable, and Theo’s visits from his brother—who brings a mix of concern and distance—do little to ease the strain. The city outside buzzes with a darker energy, a string of violent murders targeting elderly women living alone casting a long, unsettled shadow over everyone who moves through its streets.
The killings are carried out by Camille, whose presence in the hotel where Daiga works becomes a troubling link between these two lives. Camille is a figure who moves through the story with a quiet menace, and his lover shares the same dangerous secrecy. The hotel itself becomes a liminal space where private lives collide with public danger, and the fear of who might be watching grows with every new nightfall.
Daiga’s curiosity and the unsettling proximity of Camille pull the two narratives closer. She begins to shadow him, driven by a nagging suspicion that something terrible is unfolding just out of sight. When a police sketch of Camille surfaces, she pieces together enough to confirm that the man is indeed the killer roaming the city’s shadowed avenues and hotel rooms. In a decisive moment, she breaks into his room, discovers a bag of cash, and makes the bold choice to seize what could fund a way out; she then leaves swiftly, aiming to return to Lithuania with a marked sense of resolve and relief.
As the police close in, Camille is spotted after one of the victims manages to provide a description that matches the sketch. The investigation tightens its grip around the hotel and its surrounding streets, while Theo is brought to the police station for questioning. He insists, with a calm, stubborn clarity, that he had nothing to do with the murders and that he had remained oblivious to his brother’s actions throughout the period in question. The tension between truth and suspicion threads through every scene, leaving characters at a crossroads where past loyalties, new desires, and the weight of fear all vie for how they will move forward in a city that never fully reveals its secrets.

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