When Jen and Andeep downsize to a lovely bluestone house in Ballarat, they don’t expect to be followed by their spatting twenty-something daughters, Asha and Camille.

Soon, the family is living on top of each other in a tiny house and tensions simmer. As the parents focus increasingly on themselves, the girls become isolated, argumentative and violent. When Asha injures Camille, a family therapist is called in, but she shrugs off the escalating violence as a classic case of sibling rivalry and the stress of the family move.

But this is no ordinary sibling rivalry. These sisters are too far gone for that …