From Troy Bolton To Ted Bundy: Zac Efron's Transformation Has Us Shook

Look, we're not going to deny it: It's weirdly hot.

Zac Efron has come along way from his High School Musical days, and his latest look as infamous serial killer Ted Bundy in the Extremely Wicked, Shockingly Evil and Vile, is solid proof.

In case you aren't well-versed in the life stories of serial killers, Ted Bundy was convicted of killing three women and confessed to murdering more than 30 women across the U.S. before he was executed by electric chair in 1989.

One factor that made the case so infamous was the fact that Bundy was seen as good looking and charming -- a vastly different profile to other serial killers that the world had seen at the time.

According to Zac, the film -- which is set to debut at the Sundance film festival in January -- aims to observe how Bundy used his "good guy" charm to influence others.

"He wasn't a person to be glorified. [The movie] simply tells a story and sort of how the world was able to be charmed over by this guy who was notoriously evil and the vexing position that so many people were put in, the world was put in. It was fun to go and experiment in that realm of reality," Efron told Entertainment Tonight in March.

Lucky for everyone, Zac added that he didn't take the murderous character home with him after wrapping up shooting.

"I didn't take it home," he said. "I didn't go full method and I didn't have to like do any weird stuff to anybody to get into character. It's a different type of film."

Joining him in the biopic is actress Lily Collins, who plays Bundy's ex-girlfriend  Elizabeth Koepfler -- a single mother who he dates while committing the atrocious crimes and terrorising women.

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The film also stars Haley Joel Osment, John Malkovich and Jim Parsons.

Image: Getty