Vanilla is a product of Lussumo:
Documentation and Support.
The Domino Lady is really University of California, Berkeley-educated socialite Ellen Patrick. When her father, District Attorney Owen Patrick, is murdered she puts on a domino mask and a backless white dress to avenge him.
She steals from her targets, donating most of the profits to charity after deducting her cut, and leaves a calling card with the words "Compliments of the Domino Lady".

In “The Domino Lady Doubles Back” there is more plot development. The Domino Lady sends a warning to a crooked businessman that if he fails to donate to charity, she will rob him.
