The Inconfessable Orgies of Emmanuelle(1982)

Overview:

Emmanuelle is recently reunited with her husband, but at the next party, she gets drunk and strips nude for his friends. He returns to his lover. Later, a sober Emmanuelle tries to redeem herself, but her husband refuses to forgive. She travels to see him, gets raped on the way by two delinquents, and enters a life of vicious sex to forget him.