While heroine Nancy is smart and resourceful in fighting against the evil Freddy, her friends are a little less so, and the neighborhood grownups and authority figures are secretly vigilante murderers who cause more harm than good.
Much gore -- with the qualifier that it's often "nightmare," surreal violence, like Freddy's face getting torn off to reveal a staring skull, an endless fountain of blood pouring out of a victim's bed, and so on. Freddy's fingers are sliced off, and he's set on fire.
Teen lovers in bed together (exerting themselves loudly, though nothing is seen). Brief female nudity (a profile in heavy shadow).
R-worthy profanity including "f--k" a few times and "s--t" uttered by a few police officers.
None, although a Freddy Krueger industry of toys, models, books, and even software ensued.
Drinking, Drugs & Smoking
The heroine's mother is a heavy-drinking alcoholic.