Saturday the 14th is a horror-comedy movie that was released in 1981. The movie revolves around a young couple, John and Mary, who move into a new house with their two children. As soon as they move in, they discover a mysterious book hidden in the basement.
The book turns out to be a grimoire or a book of magic, and it reveals that there is a curse hanging over the date of Saturday the 14th. The curse states that on that day, all the monsters and ghouls from hell will be unleashed upon the earth.
As soon as John reads from the book, a group of monsters is released into the house, and the family must find a way to defeat the monsters and save themselves and their neighborhood.
The monsters in the movie are a mix of classic horror movie monsters like vampires, werewolves, and mummies, but they all have a comedic twist to them. For example, the mummy is addicted to snorting cocaine, and the vampire can't stand the sight of blood.
As the movie progresses, the family discovers that the only way to break the curse is to find a way to destroy the book. They team up with their eccentric neighbor, Waldemar, who is also a vampire hunter. Together, they set out to find the book and put an end to the curse.
The movie is filled with gags and jokes, making it a fun and lighthearted horror movie. While it may not be the scariest horror movie out there, it's definitely worth a watch for its comedic value.