My Brother is getting married

Vinh, a boat people refugee who was taken in by a Swiss family 20 years ago, is about to get married. His Vietnamese mother seizes the opportunity to finally meet the family that loved and raised her son and to put faces to the signatures that every year at Christmas, on the back of a postcard, tell her that the united family is in her thoughts. But at the Depierraz's house, everything is not going exactly as these messages suggest and the unexpected visit of Mrs Nguyen will put the family in turmoil. For a few days, they will have to fall back into the forgotten roles of father, wife, brother and sister... to play a fragile comedy of happiness.