Mr. Brown does not hesitate to tell Mrs. Collins that she is a charming widow. She has two daughters, Nell and Bess, who induce their charming mama to hold a reception with the privilege of inviting many of their friends. On the night of the party all the young men, including John and Harold, the respective sweethearts of Nell and Bess, are captivated by the charming widow to whom they pay court. Mr. Brown grows very uneasy and disconcerted when he finds it is a difficult matter to reach his adored one. But, however, with the help of Nell and Bess, he manages to disperse the encircling bulwark of young men, and proposes to her. Getting her consent, they quietly slip away and are married. Upon their return they find everybody strolling in the garden, and the young men besiege the new Mrs. Brown. But they are soon scattered upon being told by Mr. Brown that the charming lady is now his wife. In the evening Nell and Bess show their engagement rings and the rest announce their engagements. Congratulations follow and everybody is convinced that the reception is a grand success, due to "Charming Mama."
—Moving Picture World synopsis