“When I  was 18 the thing I wanted more than anything was to make a movie,” says director Sandi Tan in a new trailer for “Shirkers.” “I had the idea that you found freedom by building worlds inside your head, but you had to go backwards in order to go forwards. But I never imagined it would end this way,” she hints.

Directed by Tan, “Shirkers” is a documentary that explores the history — and mystery — of a film Tan made when she was 18-years-old. Also called “Shirkers,” the movie was filmed in Singapore in ’92 and starred Tan as teen murderer.

While filming the original “Shirkers,” Tan became best friends with Georges, her director. Described as a “man of unplaceable age and origin,” Georges shocked Tan and the rest of the crew when he disappeared — and took all of “Shirkers'” footage with him.

“‘Shirkers’ became a secret history that would haunt us and bond us forever,” Tan explains in the spot.

The film premiered at Sundance in January, and won the World Cinema Documentary Directing Award at Sundance.

When we asked Tan what she’d like audiences to think about after watching the film, she said “I hope they get a real jolt! I want them to rediscover their lost frenzies and forgotten appetites, to want to just go out and make stuff — totally DIY, fearless, free — without worrying about success or failure or if people think you’re uncool or weird. Try! Live! Love! I also hope they’ll recognize the unique pleasure that is fighting with your oldest frenemy,” she added. “Maybe they’ll want to call up their old bestie from high school and pick a fight. It’s so easy to forget that the power to do stuff, to make change in this world, is really in your own hands.”

“Shirkers” hits Netflix October 26.