How does a mother deal with the loss of her husband? More than this, how can she accept a forced death, caused by a heart-breaking accident? 'One year after' is the story of a mother who unwillingly meets the man who killed her husband. In an attempt to express his remorse and deep feelings of guilt, the man tries to talk to the woman whose life he has marked. A movie that takes us into the mind of a mother, exploring her hidden memories and unspoken thoughts.

Marie (and her three fathers) are taking A-levels. Marie passes. She spends the summer in the country with her mother, Sylvia, who has returned from America with her Californian husband who has two sons. Marie falls in and out of love for the first time in front of her alarmed fathers, who see Marie's innocence slipping away at frightening speed, and their relationships with the two women become even more complicated.