Lots of people wish they could be someone else, but a French businessman decides to do something about it in this satirical comedy. Francis Bergeade (Michel Serrault) runs a factory in a small town that makes toilet seats.
With his employees on strike and his wife plundering his bank account as she plans their daughter's wedding, Francis's life isn't much fun; his one real pleasure is eating and drinking well, in the company of his friend Gerard (Eddy Mitchell).
One evening, Francis is watching a television show about people who've gone missing, and he sees the sad story of Dolores (Carmen Maura), a woman living on a beautiful farm in the South of France who has no idea where her husband has gone. When a picture of Dolores's husband is shown, Francis is amazed to discover that it looks just like him.
He soon steps forward and poses as Dolores's husband, leaving his wife to wonder where he is. However, she doesn't seem all that worried, since before long she's having an affair with Gerard.