Heirs of Uncle Milex

Mary Stone will only inherit her uncle Milex's property after marrying his neck Daniel Harrison: this is a clause of the will. To better judge the young man without being adorned with the halo of "the rich heiress", Mary asks her friend Maryse to impersonate her. From their first meeting, Mary and Maryse, on the one hand, and Daniel and his friend Gérard, on the other hand, cheat. In the love game that pits the four of them against each other, they use subterfuges that turn against their perpetrators. By his strange will, Uncle Milex probably wanted to ensure the happiness of his heirs.
Didn't he muddy the waters too much?