Three young people have decided to rob the safe of the estate agent Thomas Christidis, whose office is in the center of Athens. The first of them is Ntinos, who is Christidis’ clerk, the second one is Stavros, Ntinos’ younger brother who works as a book representative, while their friend Michalis is a pirate taxi-driver. The robbery is successful, and they feel excited.

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.