A psychiatrist experiments on four volunteers with LSD to examine 60's drug culture, soon unleashing an expert in depravity.

• Ovni Indústria Cinematográfica
• Fotocena Filmes
• José Mojica Marins
• Sérgio Hingst
• Ozualdo Ribeiro Candeias
• Andreia Bryan
• Lourdes Ribas
• Mario Lima
• Roney Wanderley
• Helena Nogueira