What Happened to Monday

Due to the population growth of the world, a new law has been introduced and families can now have only one child. However, the seven sisters, identical to each other, play a dangerous hide-and-seek with the government's Child Care Bureau, which deals with this issue and is led by the brutal Nicolette Cayman. In order not to stand out, they all act as if they were one person. As a single woman named Karen Settman, a different sibling goes out every day of the week. However, one of the siblings, who are named as week days by their grandfather, will not return home one day will break the whole order.