A family inherits an old mansion which houses the dangerous 'Book of Evil' that has all the monsters of the world trapped inside it.
The movie follows the Hyatt family, who move into a creepy old house on the 14th of the month.
Unbeknownst to them, the house is filled with supernatural creatures and evil forces. As they settle in, strange and humorous events start occurring, including encounters with vampires, werewolves, and mummies.
John and Mary Hyatt, along with their children Debbie and Billy, must navigate through the chaos and hilarious encounters with the supernatural entities that inhabit their home.
They are aided by Van Helsing, a vampire hunter, who helps them battle the forces of evil.
Throughout the film, the Hyatt family finds themselves in a series of comedic and absurd situations, often referencing popular horror tropes.
As they try to survive and protect their family, they uncover the secrets of the house and attempt to break the curse that plagues them.
"Saturday the 14th" combines horror elements with witty humor, delivering a lighthearted and entertaining spoof of classic horror films.