Icon Film Distribution or Film District would be the best choices to distribute the psychological thriller film. Both have experience distributing similar genre films like Paranormal Activity and Insidious. The film would appeal to audiences aged 15-50 internationally, as long as they understand English or subtitles. Marketing strategies would include releasing a trailer with scary scenes a few months before the October release date, when audiences are in a festive mood for this genre. Self-distribution is not recommended due to lack of experience, budget, and brand recognition compared to major distributors.