Mrs. Burton forgets to take the key with her, and upon their return to the Moore residence, find that they are unable to gain entry, nor are they able to rouse the slumberous maid Bridget.

The Burtons end up hiring a taxicab and spending the night in the car, as it is too frigid to walk around outdoors.

When the Moore's cook arrives at the house the next morning, she finds the Burtons asleep in the taxi, and believes them to be deceased.

Her screams awake the Burtons, and they are finally admitted to the inside of the residence, but not before paying the taxi driver $17.

[2] The Forgotten Latchkey was released in the United States on June 7, 1913,[3][4] and on September 15, 1913, in England.