HBO is set to blur fantasy and reality in its eerie new sci-fi series, "Westworld," when the show debuts in October. In the meantime, the latest trailer has dropped, showing off the twisted drama to come.

The preview starts out innocently enough. There's a beautiful couple, a Western town, and talk of dreams. That changes pretty quickly, though. Before we know it, Dolores (played by Evan Rachel Wood) is being questioned -- naked, mind you -- by Dr. Robert Ford (Anthony Hopkins).

From there, it's off to the races. The trailer contains an orgy, blood, and some terrifying violence -- basically, all of the controversial elements that have been buzzed about in the run-up to the series premiere. Not surprisingly HBO labeled the trailer as "mature," aka probably NSFW.

Check it out for yourself below.
The series' stellar cast also includes Ed Harris, Tessa Thompson, James Marsen, Thandie Newton, and more. "Westworld" premieres on HBO on Oct. 2 at 9 p.m. ET.