The kecak dance is a Balinese musical drama and religious ceremony performed for several hours on successive nights, for up to three to four months, to exorcise evil during times of peril and pestilence. It depicts the battle in the Ramayana in which the monkey-like Vanara Lord Hanuman helps Prince Rama in his fight against the evil King Ravana. The gamelan orchestra that accompanies most Balinese dance performances is replaced by the sounds of a male chorus similar to the rhythms of the gamelan featuring a synchronized "chak-achak-achak" clicking. The men sway their bodies and wave their hands; throwing up their arms, falling back against one another in unison, while several characters appear and dance among them. A kecak chant can be heard in Fellini's classic 1969 film Satyricon.