Exploring psychological horror films reveals a captivating depth within the horror genre, where the terrors stem not only from external threats but also from the human mind itself. These films leverage subtle storytelling, complex character development, and meticulous attention to atmosphere, challenging viewers to confront uncomfortable truths about fear, identity, and perception. In this exploration, we will uncover what defines psychological horror, how it crafts unease, the pivotal themes it explores, and its enduring impact on audiences in English-language cinema.