It’s scary movie season, a time when many people watch films about zombies, serial killers, werewolves, magic and mysterious monsters who are impossible to kill.

However, as far as I know, there’s only one film that features all of those elements – and you’ve probably never seen it.

Made in 2007, “Trick ‛r Treat” consists of four interconnected horror stories, each about 15 to 20 minutes long, that all take place on a single Halloween night.

While characters from one story sometimes appear in other segments, the unifying force in the film is Sam, a mysterious creature wearing a burlap mask. He takes umbrage whenever a character disrespects a Halloween tradition, whether it’s by scaring away trick-or-treaters or blowing out a jack-o’-lantern before Halloween is over. Each meets a gruesome end.

Horror buffs eventually discovered the film. Today, it’s hailed as a modern classic...