Superstitious new rich find that they will be thirteen at the table. To reassure themselves, they invite a piano tuner, named Gonzague, whom they pretend to be Prince Gonzague to their guests. One of them imagines that Gonzague is his wife's lover.
| Directing | Jean Grémillon | Director |
| Writing | Jean Grémillon | Dialogue |
| Writing | Jean Grémillon | Screenplay |