An acclaimed director reunites with his former lover, confronting the aftermath of their secret affair. Decades earlier, they fell in love while she was married to his best friend.

FAITHLESS explores the relationship between love and passion. When renowned director David Howard, 73, reunites with his former great love, actress Marianne Vogler, 75, they are confronted with the painful consequences of their previous affair - not only for themselves, but for their families. Forty years prior, they secretly fall in love, as Marianne is married to David's best friend Markus.