The Strangers film series consists of American psychological horror films. Based on an original story by Bryan Bertino, the plot centers around three masked psycho-sociopathic home invaders that prey on the innocent owners. Though the first film was marketed as "based on a true story", this was a slight misdirect as the filmmaker stated that he wrote the concept from a series of break-in burglaries that took place in his neighborhood when he was growing up, as well as borrowing elements from the Manson Family Tate murders. Continuing this marketing technique, a "based on a true story" tag was also included at the beginning of the sequels.