Mom's Outta Sight plot
The Richards family is counting on a million-dollar inheritance, but their uncle says on his deathbed that they will not receive a cent, because there must still be a rightful heir in the form of a lost child, who must now be 12 years old. The will executor wants the boy tracked down so that he can attend the notarial ceremony, but the other heirs plan to have the boy die in an accident. The boy is now in an orphanage and despite his efforts he is now being adopted. His new mother once accidentally drank a serum from her inventor husband, which now makes her invisible when aroused.