15. Gonjiam: Haunted Asylum (2018)

South Korean filmmakers are fearless, often delivering lacerating and precisely crafted twists and turns. Gonjiam: Haunted Asylum is no exception. A horror web series crew travels to an abandoned asylum where 42 patients took their own lives and the hospital director went missing, hoping to boost views with a live broadcast. While their ghost-hunting scenarios are typically staged, the asylum has other plans for these unsuspecting fame-seekers. Gonjiam: Haunted Asylum is unrelenting, barely allowing you a moment to breathe since the ghosts often appear out of nowhere making petrifying and strange noises.

One of the biggest scares involves a camera falling and viewers see a pair of feet floating in the air, slowly getting closer and closer to the web series star. The frights in Gonjiam: Haunted Asylum are sleek and savage, making for an adrenaline-fueled viewing experience despite its familiar premise.