Peeping Tom (1960)
Peeping Tom centers on a serial killer (Carl Boehm) who is making a documentary on fear, which involves murdering women while using a portable film camera to record their dying expressions of terror.
Because of its disturbing subject matter, the Michael Powell-directed movie received extremely harsh reviews from critics upon its release. Though the critical savaging had a severe negative impact on Powell’s filmmaking career, Peeping Tom attracted a cult following. Years later, the movie was re-evaluated and is now widely considered a masterpiece and a progenitor of the contemporary slasher film.