Koma - Lebendig begraben(1997)

A police psychologist saves a young woman from jumping to her death and takes the unstable stranger into her family. She soon becomes jealous of her benefactor's happy marriage and tries to seduce her husband. When the rescuer surprises them both in an apparently explicit situation, she and her friend leave the home in a hurry. She suffers a car accident in which her friend dies and she herself falls into a coma. A time of hope and waiting begins for the man.