Le Bonheur movie plot

Francois is an ordinary young man who works in his uncle's lumber yard, has a home in Le Bonheur, and takes his wife and children on outings every Sunday. When spring turned to summer, he went out to run errands and met Emily who was working in the post office. The two fell in love immediately, but Francois did not feel guilty and continued to deal with the two women. He felt very Le Bonheur, until one day he got carried away and told his wife about it, his wife only said one sentence "if you feel Le Bonheur like this", and then lay down on him for the morning. When he woke up, his wife had drowned. Whether it was an accident or suicide, no one knows. Later, Emily also went on an outing with the Francois family. Although it was the same as the outing with his wife before, he lost the innocence and cheerfulness of the past. At this time, the autumn in the forest was already very deep   .