Marielle is happily married to Charles Delauney, and they have a four-year-old son together, Andre. After being visited by Marielle's parents, who warn her about Charles, Marielle, Charles and Andre go on holiday in Switzerland. While Marielle is being greeted by a neighbor, Andre tries to get his ball from the lake and ends up drowning. Charles blames Marielle, and she ends up having a nervous breakdown.