what happend to monday

In the year 2073 where the world's biggest problem is overpopulation due to genetically modified food, increasing the birthrate of twins, triplets, etc. Due to the world's population rapidly increasing day by day, the government decides to create a strict one-child policy. All siblings will be put to sleep using technology called cryosleep, hoping the siblings will wake up to a better world, a utopia. A group of identical septuplets ( played by Noomi Rapace ) go into to hiding, each sibling is named after a day of the week, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, and Sunday. Each take turns assuming the single identity of Karen Settman, putting on an act as an only child, only to express their true selves at home. Only one child can go outside, according to the day they were named after. That is until Monday doesn't come home.