It combines elements of the B-Western genre with contemporary crime films, especially the popular "land grab" plot in which the villain attempts to steal apparently worthless land from the heroine (in this case) because he secretly knows it is worth a fortune.

In this case, Dolores Quantero, is the rightful heir to extremely valuable metropolitan land which another family member, Carlos Manning, wants for himself.

Another descendant, Carlos Manning, has discovered the existence of this document and plots to inherit the fortune by murdering his relatives.

Daughter of Don Q was budgeted at $137,988 although the final negative cost was $140,156 (a $2,168, or 1.6%, overspend).

Although budgeted to be the most expensive Republic serial of 1946, The Crimson Ghost took that title with its final negative cost of $161,174.