A Nightmare on Elm Street (1984) http://www.imdb.com/title/tt0087800/
On Elm Street, Nancy Thompson and a group of her friends including Tina Gray, Rod Lane and Glen Lantz are being tormented by a clawed killer in their dreams named Freddy Krueger. Nancy must think quickly, as Freddy tries to pick off his victims one by one. When he has you in your sleep, who is there to save you?
A Nightmare on Elm Street Part 2: Freddy's Revenge (1985) http://www.imdb.com/title/tt0089686/
17-year old Jesse Walsh and his family have moved into Nancy Thompson's old house on Elm Street. No sooner are they moved in than Jesse begins to have horrific nightmares - ones that feature a burned man in a dirty red & green sweater, with knives on the fingers of his right hand. His neighbor & new sweetheart, Lisa, discovers the truth behind Fred Krueger and his horrible murder spree. Freddy vows to take over Jesse's body to continue his vile crimes against the Elm Street residents. Soon, people close to Jesse start dying violently - his ex-Marine coach, one of his classmates, many others at a pool party Lisa throws. Will Lisa's love for Jesse be enough to help him overpower the demonic presence inside him?
A Nightmare on Elm Street 3: Dream Warriors (1987) http://www.imdb.com/title/tt0093629/
Picking up where the original Nightmare left off, Nancy has grown up and become a psychiatrist specializing in dream therapy. She meets a group of children at a local hospital facing Freddy Krueger, the same demon she once encountered in her sleep. One of them is Kristen, who has the power to draw other people into her dreams. Working with a male doctor assigned to the case, Nancy helps the kids realize their special abilities within the nightmare world. When Freddy captures one of her charges, she leads a rescue attempt into Krueger's domain, in hopes of putting his spirit to rest once and for all.
A Nightmare on Elm Street 4: The Dream Master (1988) http://www.imdb.com/title/tt0095742/
Following up the previous Nightmare film, dream demon Freddy Krueger is resurrected from his apparent demise, and rapidly tracks down and kills the remainder of the Elm Street kids. However, Kristen (who can draw others into her dreams) wills her special ability to her friend Alice. Alice soon realizes that Freddy is taking advantage of that unknown power to pull a new group of children into his foul domain.
A Nightmare on Elm Street: The Dream Child (1989) http://www.imdb.com/title/tt0097981/
Alice, having survived the previous installment of the Nightmare series, finds the deadly dreams of Freddy Krueger starting once again. This time, the taunting murderer is striking through the sleeping mind of Alice's unborn child. His intention is to be "born again" into the real world. The only one who can stop Freddy is his dead mother, but can Alice free her spirit in time to save her own son?
Freddy's Dead: The Final Nightmare (1991) http://www.imdb.com/title/tt0101917/
In part six of the Nightmare on Elm Street series, dream monster Freddy Krueger has finally killed all the children of his hometown, and seeks to escape its confines to hunt fresh prey. To this end, he recruits the aid of his (previously unmentioned) daughter. However, she discovers the demonic origin of her father's powers and meets Dad head-on in a final showdown (originally presented in 3-D).
New Nightmare (1994) http://www.imdb.com/title/tt0111686/
It's nearing the 10th Anniversary of the film 'A Nightmare on Elm Street' and one of the stars, Heather Langenkamp is being scared by a voice on a phone, sounding very similar to the film's villain, Freddy Krueger (Englund). When Heather's husband is killed in a car accident and is discovered with slash marks on him, Heather starts to wonder something. Especially when she discovers that Wes Craven is writing another 'Nightmare' film. Soon, she realises that Freddy has now entered the real world, and the only way to defeat him is to become Nancy Thompson once again.