"It was called the Tango Club ... It was totally perverted!"

Tango of Perversion

A rich man with an impotence problem becomes subject to manipulation by those around him. When he gives the keys to his villa to two women, he witnesses a murder. A series of cunning plots and secrets make things difficult for the police as they hunt for the murderer, but a film that the owner of the villa secretly shot reveals the perpetrator’s identity.