When the body of a woman is found stabbed to death, the blame falls to her twin sister. But who stabbed who? And which one is now the woman behind the bars? Zara and Miranda have always supported each other. But then Zara meets Seb, and everything changes. Handsome, charismatic and dangerous, Seb threatens to tear the sisters' lives apart but is he really the one to blame? Or are deeper resentments simmering beneath the surface? As the sisters' relationship is stretched to the brink, a traumatic incident in Seb's past begins to rear its head and soon all three are locked in a psychological battle that will leave someone dead. The question is: who?