Meet the half sister, and unravel the ties that blind us.

THE TRUTH

Sisters Kate and Lauren meet for Sunday lunch every week without fail, especially after the loss of their father.

THE LIE

But a knock at the door is about to change everything. A young woman by the name of Jess holds a note with the results of a DNA test, claiming to be their half sister.

THE UNTHINKABLE

As the fallout starts, it's clear that they are all hiding secrets, and perhaps this family isn't as perfect as it appears.