Description
Trelkovsky, a quiet and unassuming man, rents an apartment in Paris whose previous tenant, Egyptologist Simone Choule, attempted to commit suicide by throwing herself out of the window and through a pane of glass below. Before moving in officially, he meets the concierge, who shows the apartment to him, and also shows him where Simone fell. He visits Simone in the hospital but finds her entirely in bandages and unable to talk. Whilst still at Simone's bedside, Trelkovsky meets Simone's friend, Stella, who has also come to visit. Stella is overwhelmed with emotion and begins talking to Simone, who looks towards her visitors and screams monstrously. The matron insists they leave, having already informed Trelkovsky that he may not speak to Choule. Trelkovsky tries to comfort Stella but dares not say that he never knew Simone, instead pretending to be another friend. They leave together and go out for a drink and a movie (1973's Enter The Dragon), where Stella fondles him.
Outside the theatre they part ways. Later, Trelkovsky calls up the hospital to enquire about Simone, and is told she has died.
As Trelkovsky occupies the apartment he is chastised repeatedly by his neighbors and landlord, Monsieur Zy, for hosting a party with his friends, apparently having a woman over, making too much noise in general, and not joining in on a petition against another neighbor. Trelkovsky attempts to adapt to his situation, but is increasingly disturbed by the apartment and the other tenants. He frequently sees his neighbors standing motionless in the toilet room (which he can see from his own window), and discovers a hole in the wall with a human tooth stashed inside. He discusses this with his friends, who do not find things strange and belittle him for not standing up to his neighbours. He visits the apartment of one of his work friends, who plays a marching band record at a spitefully loud volume. A neighbour politely asks him to turn down the music, as his wife is ill and trying to sleep. Trelkovsky turns the record down, but his friend tells the neighbour that he will play his music as he wants, and that he does not care about his sick wife.
He receives a visit from one Georges Badar, who secretly loved Simone and has believed her to be alive and well. Trelkovsky updates and comforts the man and spends the night out with him. He receives a postcard that Badar had posted before realising Simone had died. Frequenting the nearby café which Simone also patronised, he is recognized as the new tenant of her apartment. The owner pressures him into having Simone's regular order, which is then always given to him without being ordered, against his preferences. They are always out of his preferred choice of cigarette, Gauloises, so he develops a habit of ordering Marlboros, which Simone used to order. Nobody has any idea why Simone was suicidal.
Trelkovsky becomes severely agitated and enraged when his apartment is robbed, while his neighbors and the concierge continue to berate him for making too much noise, and his landlord warns him not to inform the police of the burglary. Suffering from fever and bad dreams, he wakes up one morning to find his face made up. He buys a wig and women's shoes and goes on to dress up (using Simone's dress which he had found in a cupboard) and sit still in his apartment in the dead of night. He suspects that Zy and neighbors are trying to subtly change him into the last tenant, Simone, so that he too will kill himself. He becomes hostile and paranoid in his day-to-day environment (snapping at his friends, slapping a child in a park) and his mental state progressively deteriorates. He has visions of his neighbors playing football with a human head, finds the toilet covered in hieroglyphs, and looking across the courtyard, sees himself standing at his apartment window, looking into the bathroom with binoculars. Trelkovsky runs off to Stella for comfort and sleeps over, but in the morning after she has left for work, he concludes that she too is in on his neighbors' plot, and proceeds to vandalise and burgle her apartment before departing.
At night he is hit by an elderly couple driving a car. He is not injured too seriously, but receives a sedative injection from the doctor due to his odd behavior – he perceives the elderly couple as his landlord Zy and wife, and accuses them of trying to murder him. The couple returns him to his apartment. A deranged Trelkovsky dresses up again as a woman and throws himself out of the apartment window in the manner of Simone Choule, before what he believes to be a clapping, cheering audience composed of his neighbors. The suicide attempt wakes up his neighbors, who call the police and attempt to restrain him. He crawls away from them back to his apartment, and jumps out the window a second time moments after the police arrive.
In the final scene, Trelkovsky is bandaged up in the same fashion as Simone Choule, in the same hospital bed. From his perspective, we see his and Stella's own visit to Simone. Trelkovsky then lets out a monstrous scream as Simone did in the earlier scene.
