15 Most Disturbing Black Mirror Moments

Marie was overprotective of her small child. Nothing wrong or untoward with that, you might think. Except in this case, the whole process was taken a step or two too far, as Marie can watch everything her daughter does via an Arkangel tablet.

Marie failed to take her now adolescent child's desire for freedom into account when prying excessively into her personal life. But things turned particularly savage when she meddled in the relationship of Sara's supposedly unsavory boyfriend. While Sara was discovering the rules of life at her own natural discretion, her mother was making plans to not only terminate Sara's relationship, but to also neuter any chance of future family planning.

The belligerence of this act caused Sara to lash out in the most Black Mirror-ish way imaginable, by beating her mother almost to death with the Arkangel tablet installed originally to make her safer.

Even more ironic was that Sara then took to a life of hitchhiking, which was to place her in more future danger than could ever have been be possible had her mother not misplaced her trust in intrusive spy technology.