I was moved by this film. I was aware of Kate Nelligan's performance as Susan Traherne in the original stage version, a lusty, glowing former Resistance heroine with a shattered psyche. In the film, Meryl Streep focused on a beautiful, disarming character's inconsistent control of the crazy energy lurking underneath.
Plenty could be re-released today on a double bill with the recently released Brothers. Both show the long-term effects of war, fought overtly and covertly, on combatants and those who love them. It is no secret that the soldier in Brothers wreaks havoc on his family after returning from one tour of duty too many in Iraq. "People with PTSD have persistent frightening thoughts and memories of their ordeal and feel emotionally numb, especially with people they were once close to."
So, one way to view and appreciate Susan Traherne and her effect on her husband, friends and co-workers is from this perspective within the context of their cultures.