Black Mirror Season 2 Episode 2

Victoria wakes up and cannot remember anything about her life. Everyone she encounters refuses to communicate with her and enjoys filming her discomfort on their phones. Victoria meets Jem, who explains that a signal is being transmitted that has turned most of the population into dumb voyeurs. This apathy has allowed the unaffected, the ‘hunters’, to do what they want and they are out to get people like her and Victoria.