I just loved this movie, it was so much fun. I have loved Francesca Annis since I saw her in a TV series on PBS about the life of Edward the Eighth, I think that's the number. She is so beautiful and talented, she just grabs your attention. "Deadly Summer" is a kind of a road tour, two British couples with their children rent a summer house in France. Some of the scenes made me very uncomfortable, particularly the abusive husband. I am not going to spoil my comments about this movie, but when brow beat your chubby wife, when you constantly denigrate her, when you treat her like a loser, then you are going to get it!
It's about their dysfunctional lives. I won't post a spoiler, but the ending is very satisfying. I love the the folk song, "Erie Canal, Low Bridge, Everybody Down." Got it?