Vinh, a Vietnamese refugee, was adopted 20 years ago by a Swiss family and is now about to get married. His Vietnamese mother seizes this opportunity to finally meet the family that loved and raised her son. But things are not quite going the way they should and the unexpected visit of Mrs Nguyen is going to cause some agitation to the family. They are now going to have to act out the forgotten roles of father, mother, brother and sister… to play the fragile comedy of happiness.