An undercover investigator's moral compass begins to change when she infiltrates an anarchist group responsible for targeting major corporations. When the CEOs of high profile companies find themselves the victims of a number of covert attacks, former FBI agent Sarah Moss (Brit Marling) is recruited by private intelligence firm Hiller Brood to gather information on 'The East', a shadowy eco-activist collective thought to be responsible. After finally managing to infiltrate the group, however, Sarah discovers her allegiances beginning to shift, as she increasingly begins to question the moral uncertainties of her life and finds herself falling under the spell of the group's charismatic leader Benji (Alexander Skarsgård).

Golden Globe & Emmy winner Elisabeth Moss stars in a terrifying modern tale of obsession, inspired by Universal’s classic monster character.

Trapped in a violent, controlling relationship with a wealthy and brilliant scientist, Cecilia Kass escapes in the dead of night and disappears into hiding, aided by her sister, their childhood friend and his teenage daughter. But when Cecilia’s abusive ex commits suicide and leaves her a generous portion of his vast fortune, Cecilia suspects his death was a hoax.

As a series of eerie coincidences turns lethal, threatening the lives of those she loves, Cecilia’s sanity begins to unravel as she desperately tries to prove that she is being hunted by someone nobody can see.