This past year we got the opportunity to see a lot more of Jake Gyllenhaal's dark side ("Prisoners," "Enemy") and with his latest film, "Nightcrawler," we should expect a new level of heavy from the Oscar-nominated actor.

"Nightcrawler," which will screen at this year's Toronto International Film Festival (TIFF), is directed by Dan Gilroy, who co-wrote the screenplay for the last Bourne film. The thriller stars Gyllenhaal as an ambitious journalist who makes his way into the sleazy, underground world of L.A. crime journalism. 

The teaser trailer gives us a look at a long-haired Gyllenhaal, who seems driven, intelligent and mildly insane. Bill Paxton and Rene Russo also appear. Following its TIFF appearance, "Nightcrawler" will by Open Road Films on October 17.

Check out the wild teaser and poster below.

Nightcrawler, poster,