Faithless is a triangle drama between the married couple Markus and Marianne and their best friend David. Marianne and David embark on a secret passionate love affair with painful consequences, which they are forced to confront 40 years later. BAFTA and Guldbagge Award-winning Tomas Alfredson directs the series based on Sara Johnsens' script, adapted from Ingmar Bergman's text.