Based on the true events that took place in the 70s, in Rio de Janeiro. The body of beautiful girl Cláudia Lessin Rodrigues, actress Márcia Rodrigues`s sister, was found in the seashore. After Police investigation, it was found she had been murdered on a party by a rich industrialist`s son and his socialite hairdresser buddy, after much sex, alcohol and drugs, specially Mandrax (methaqualone). She`d probably resisted being raped and the killers threw away the body in the water. One of the guys tried to escape flying to Switzerland.