Clara is the Price

Clara is the Price Spanish Clara es el precio is a 1975 Spanish film directed by Vicente Aranda. It stars Amparo Muoz, Mximo Valverde and Juan Luis Galiardo. It was shot in Cadaques, Empuriabrava Girona, Delta del Ebro Tarragona and Barcelona.

Clara is brutally raped by Kellerman. She finds out that not only her husband is not really impotent as she thought, he has had sex with other women including Claras friend, but Juan also has an homosexual relationship with Miguel, the director of the porno films. She finally realizes that she has been only a coin changed in the hands of the men around her. Armed with a gun, Clara takes revenge killing Kellerman, humiliating Jorge and Miguel shooting them too.The idea behind the film came from Pedro Carvajal who wrote the screenplay. From Madrid he went to Barcelona and persuaded director Vicente Aranda to take on the project. Aranda was initially reluctant, but accepted to direct the film after making substantial changes to the script. However this is the only film in Arandas long career in which he did not sign the script. ........

Source: Wikipedia