[1] The film stars Maisie Williams as Casey Jacobs, a typical teenage girl who lives her life out online, and is called out for her cyberbullying by an anonymous culprit.

While Skyping with her best friend Megan, who is about to go on a date, Casey learns that her ex-boyfriend, Nathan, has posted a cruel comment on Twitter about her use of anti-depressants.

Suddenly frightened, Casey excuses herself from the chat, but after seemingly complying, the hacker activates a screamer on her computer, catching her off-guard.

Casey tries to covertly send a message to Megan but the hacker intercepts it by accessing her phone as well, effectively leaving her trapped and isolated.

The hacker explains how Casey's "Chronic Youth" activity constitutes cyber-bullying, such as a video she made deriding a group of online shoppers.

Jennifer eventually posted a video in which she told the story of her abuse with flash cards, and committed suicide shortly afterwards.

The hacker announces that Casey will have to choose either death by taking an anti-depressant for each picture to keep them from being posted until she overdoses, or live with the shame that would inevitably follow from the exposure, along with the loss of her best friend.

Casey simply tells them to go ahead and post the photos if they wish, because they can do nothing to control the actions or emotions of her family, friends or real life.

[3] Maisie Williams, who portrayed the central character of Casey Jacobs, noted that she had been a victim of cyberbullying after being cast as Arya Stark in Game of Thrones.

The Spectator asserted that the one-off play was a "very well made one, deftly shifting our sympathies throughout (with the aid of Maisie Williams’s dazzling central performance) and full of genuine menace.

"[6] Similarly, writing in The Guardian, Filipa Jodelka described Maisie Williams central performance as a "tour-de-force", although noted that unlike its billing it shouldn't be "viewed as a realistic depiction of cyberbullying at all, but as a kind of millennial ghost-in-the-machine spine-chiller instead, replete with traditional horror devices (Faustian pacts, anonymous ghouls, tests of morality), mild peril and creepy strings.