Not including the
Freddy vs. Jason movie released in 2003, there were a
total of 8 Friday the 13th movies released in the 80's,
with the first one in 1980. In the original, a
group of horny teenagers decide to re-open Camp Crystal
Lake, which had been closed for 20 years because of some
mysterious murders. Needless to say, Jason Vorhees
(the bad guy in the mask) decides to chop them all up.
This series is classic 80's horror.