Peeping Tom (1960)
It’s one of the most influential horror films ever made, and you have likely never heard of it. It’s “Peeping Tom,” released in 1960 by British director Michael Powell. And it’s the upsetting story of a serial killer who films his victim’s final moments. On its initial release, the general public didn’t know what to do with “Peeping Tom.” Since then, it’s been regarded as a direct antecedent to the slasher subgenre, found-footage films and the careers of auteurs like Martin Scorsese.