On July 4, while going to watch the fireworks after Danica and Teddy's engagement party, the five friends become unwittingly involved in a car accident that kills a man. They decide not to tell anyone about it, and Teddy's rich father does his best to cover it up. A year later, Danica is getting married to someone else and, opening presents at a bachelorette party, discovers a note - "I know what you did last summer." That same night, her fiancé is brutally murdered by an unknown man with a huge hook.

A young girl named Emma is attacked by a cab driver, gets a dose of drugs and passes out. Waking up in some dirty shack, Emma learns that she is now at a party organized by three sadistic psychopaths. Unfortunately or not, what the psychopaths don't know is that Emma is an extremely resilient and determined girl....

A young psychiatrist, Dr. Martin, arrives at Dunsmore Psychiatric Hospital where he hopes to be employed. The clinic's chief physician, Dr. Star, has been placed with his former patients because of mental illness. His assistant, Dr. Rutherford, in order to test the competence of the new arrival, shows Dr. Martin four patients, among whom is Dr. Star. The doctor must listen to them, identify and locate the mad head doctor....

One night in a small town, 17 junior high school students ran away from home at the same time and disappeared without a trace. They were all in the same class, and only one boy did not disappear. For a month now, the police have been unable to find any clues, and the inconsolable parents believe that the new homeroom teacher is somehow involved.

At a friends' wedding, Janet catches the bride's bouquet and her boyfriend Brad offers her hand and heart. Engaged, the couple decides to break the happy news to their teacher and sets off, but on the way the wheel goes flat and the young people find themselves in the ancient castle of the eccentric Dr. Frank-n-Furter. The doctor introduces them to his newest creation, a muscular young man named Rocky. This house and all its inhabitants exist according to their own laws. Here under energetic music everything that is unacceptable in decent society is possible. And sometimes it seems that all this is happening on some other planet.

Journalist Grace Collier investigates the deaths of two children, in which Dr. Lakan was mysteriously involved many years ago. Soon she meets the doctor's assistant Angelica and her twin sister Annabel. But, entangled in this strange case full of mysterious deaths, Grace herself becomes part of the experiment...

A young woman, Sylvia Hachermann, lives alone in a fashionable apartment. However, she has a friend living one floor above, a lover - a pleasant young man, and a nice neighbor, Signor Rossetti, who shows Sylvia surprising kindness. At one of the parties, a negro guest tells about the effects of black magic, when a person gradually begins to go mad without realizing it. After that Sylvia begins to be haunted by nightmares from the past and present, when the line between the real and the imaginary is blurred. She notices strange, suspicious changes in her immediate surroundings, until everything becomes sinister....

A small dog peeing fire flames on Freddy's grave in one of the heroes' dreams revives this Lord of Dreams. With joy he starts killing the surviving heroes of the previous installment, who at one time gave him a worthy resistance. It seemed that he would remain the invincible and terrible Nightmare of Elm Street. But Freddy miscalculated: a moment before his departure to the next world, Kristen, the last offspring of Elm Street, manages to transfer his unique ability to lure other people into his dreams to the girl Alice....

Scientist Eddie Jessup believes that altered states of consciousness are as real as reality. Using a sensory deprivation chamber and a powerful hallucinogen brought from Mexico, he tries to prove his colleagues right.

An accident occurs on the set of the next episode of A Nightmare on Elm Street: Freddy's technically perfect glove kills the special effects technicians and injures the husband of Heather Langenkamp, who plays Nancy. Her son disappears in an unexplained manner. When Heather wakes up because of the earthquake, she realizes it was just a dream. However, her husband cut his fingers exactly as it happened in her dream.