Within days of attending a quiet family lunch in rural Victoria, Australia, three people are dead, one is fighting for their life in the ICU, and a fifth, Erin Patterson - the cook and host - becomes the leading suspect in a murder case.

After almost two years, the trial of Erin Patterson takes over the former coal town of Morwell, Victoria. With a mountain of evidence withheld from the jury, two stories unfurl - what the jury knows, and what is kept hidden from them.

Erin Patterson takes the stand and brings doubt to every element of the prosecution's case. But as the cross-examination delves deeper, she introduces new claims, details and deceptions - and these small lies ultimately prove her undoing.