Faithless (2000) on Netflix

An imaginary woman recollects the painful experience of adultery to a storyteller.

Marianne is a theatre actress married to an orchestra conductor, Markus. She becomes involved in an affair with their director friend, David, which leads to a painful divorce and battle for custody of their daughter, Isabelle. Although all of them are merely fictional characters created by Bergman, their experiences become very real and traumatic for him.

—Yuhui <yuhui@email.com>