The film tells a story which lasts just one day. It is one of those strange days at the beginning of summer when anything can happen; when the sudden heat strikes both man and beast with inexplicable force.
Our heroine, Zoe, is around thirty, married, with two children, the second being a two month old baby. She works for an international computer company as a program analyst. On this particular day she is told that she has been selected for a special program of advanced training in the United States. She is totally unaware of all that will happen to her that same afternoon in the National Gardens of Athens. Zoe does not suspect that within herself the memories and instincts of primitive ages affect her subconscious and her work.
Through a series of events in the park she is captivated by these internal powers, losing all sense of identity in the process. Her actions arouse the sensitive children in the park and all the animals in the zoo. She creates such a panic that the police cannot control it and finally hunt her down like a wild beast. Zoe is the last to remain in the park, with her daughter, while her husband makes a desperate effort to save them.
 The film's heroine, Zoe, lives in a large city of today, like Athens in the eighties. She is totally a part of an increasingly technocratic society and finds herself at the same time shut up in her individual shell with no way out. None of those who know her - nor she herself, of course - could ever imagine how she was transformed that summer afternoon in the National Gardens.
The drama takes place in the small jungle besieged for ever by the large concrete jungle of the city. Zoe will lose" herself in there. Without identity, with absolutely no function, she is now a pure element of nature and she will wreak havoc in the calm life of the park, with disastrous consequences.