Watch Mania for Free: How to Stream the Movie Online at 123Movies. . It is on Ascension Day that Zoe, a brilliant computer analyst, visits the National Park in the center of Athens with her daughter, Katerina. That afternoon in the park, Zoe experiences an overwhelming array of instinctive compulsions and transforms into an ancient Maenad in ecstatic frenzy, even capable of murder. Instincts and animals get loose and panic takes over.