Zac Efron Looks Deadly Similar to Ted Bundy on Movie Set

Zac Efron is getting his Ted Bundy on for his new movie, and is already staring into the eyes of a would-be victim.

Zac was filming a scene Monday in Cincinnati for "Extremely Wicked, Shockingly Evil and Vile" -- which is told from the point of view of Bundy's gf, Elizabeth Kloepfer, played by Lily Collins.

Zac was caressing her for a scene, and considering the subject matter ... it looks pretty damn creepy from afar. Check out the above gallery, if you don't believe us.