Making of a murderer: A chilling new trailer for biopic about serial killer Jeffrey Dahmer shows his high school years...and he's played by Disney star Ross Lynch

If the trailer is anything to go by, My Friend Dahmer is sure to be terrifying.

A new teaser trailer for the upcoming biopic was released at Comic-Con in San Diego on Saturday.

The film profiles notorious serial killer Jeffrey Dahmer back when he was in high school, before he began his killing spree.

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Chilling: A new teaser trailer for the upcoming biopic My Friend Dahmer was released at Comic-Con in San Diego on Saturday

Chilling: A new teaser trailer for the upcoming biopic My Friend Dahmer was released at Comic-Con in San Diego on Saturday

Ross Lynch, 21, portrays Dahmer, taking on the role of the killer with a chilling performance.

The film also stars Alex Wolff as his oblivious friend, Vincent Kartheiser as his doctor, and Anne Heche and Dallas Roberts as his parents.

In real life, Dahmer earned himself the nickname the 'Milwaukee Cannibal'.

Between 1978 and 1991, he raped, murdered and dismembered 17 boys and men, killing his first victim just two weeks after his high school graduation. 

Disturbed: Ross Lynch portrays Jeffrey Dahmer in the film, taking on the role of the killer with a chilling performance

Disturbed: Ross Lynch portrays Jeffrey Dahmer in the film, taking on the role of the killer with a chilling performance

The start of something... The film profiles notorious serial killer Jeffrey Dahmer back when he was in high school, before he began his killing spree

The start of something... The film profiles notorious serial killer Jeffrey Dahmer back when he was in high school, before he began his killing spree

Clueless: The film also stars Alex Wolff (left) as his oblivious friend, Derf, who wrote the graphic novel on which the film is based

Clueless: The film also stars Alex Wolff (left) as his oblivious friend, Derf, who wrote the graphic novel on which the film is based

Some of his later killings involved necrophilia, cannibalism and the preservation of the remains of his victims.

Dahmer was arrested on July 22, 1991, after a potential victim managed to escape and informed police.

After scouring his house, officers found dismembered body parts of his other victims throughout the property, along with disturbing Polaroid pictures he'd taken of them.

Future killer: In real life, Dahmer went on to earn himself the nickname the 'Milwaukee Cannibal'

Future killer: In real life, Dahmer went on to earn himself the nickname the 'Milwaukee Cannibal'

Contributing factors: The film details his troubled upbringing, his isolation from his peers, his mental illness and his battle with alcoholism

Contributing factors: The film details his troubled upbringing, his isolation from his peers, his mental illness and his battle with alcoholism

Between 1978 and 1991, he raped, murdered and dismembered 17 boys and men, killing his first victim just two weeks after his high school graduation

Between 1978 and 1991, he raped, murdered and dismembered 17 boys and men, killing his first victim just two weeks after his high school graduation

Dahmer was later sentenced to 16 life sentences, which he began serving on February 15, 1992.

On November 28, 1994, he was killed by fellow inmate Christopher Scarver, who bludgeoned him to death.

He was 34. 

Horrifying: Some of his later killings involved necrophilia, cannibalism and the preservation of the remains of his victims

Horrifying: Some of his later killings involved necrophilia, cannibalism and the preservation of the remains of his victims

Recognizing the signs... The film also stars Mad Men actor Vincent Kartheiser as Dahmer's childhood doctor

Recognizing the signs... The film also stars Mad Men actor Vincent Kartheiser as Dahmer's childhood doctor

Speaking about the film, Ross told Rolling Stone this week he had 'no idea' who Dahmer was before taking on the part

Speaking about the film, Ross told Rolling Stone this week he had 'no idea' who Dahmer was before taking on the part

Hostile: Anne Heche and Dallas Roberts star as Dahmer's dysfunctional parents. The pair went on to divorce, which had a lasting impact on their son

Hostile: Anne Heche and Dallas Roberts star as Dahmer's dysfunctional parents. The pair went on to divorce, which had a lasting impact on their son

My Friend Dahmer profiles what led to the young man's escalation into full-blown serial killer.

It details his troubled upbringing, his isolation from his peers, his mental illness and his battle with alcoholism. 

The movie is based on the graphic novel by Dahmer's high school friend John 'Derf' Backderf, portrayed by Alex, 19, in the film. 

After being sentenced to 16 life sentences in 1992, Dahmer was killed by a fellow inmate  in November, 1994

After being sentenced to 16 life sentences in 1992, Dahmer was killed by a fellow inmate in November, 1994

House of horrors: Police officers would later find dismembered body parts of Dahma's other victims throughout his home

House of horrors: Police officers would later find dismembered body parts of Dahma's other victims throughout his home

Challenging: 'I thought it was awesome to just be unpredictable,' Ross said of the role. 'Hopefully my next role could be something that most people won't expect from me'

Challenging: 'I thought it was awesome to just be unpredictable,' Ross said of the role. 'Hopefully my next role could be something that most people won't expect from me'

Speaking about the film, Ross told Rolling Stone this week he had 'no idea' who Dahmer was before taking on the part. 

A former Disney star, the actor says he took the role on as a challenge.

'I thought it was awesome to just be unpredictable,' he said. 

'Hopefully my next role could be something that most people won't expect from me.'

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My Friend Dahmer trailer is released

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