Australian mushroom killer Erin Patterson will learn Friday if her murder convictions stand as prosecutors push for more jail time

Erin Patterson, 52, the Australian woman serving life imprisonment for the 2023 death cap mushroom murders, faces a double-edged ruling on Friday — her own appeal against conviction and a prosecution push to lock her away for far longer than 33 years.

Patterson's lawyers argued in August that she suffered a miscarriage of justice, citing 'oppressive' cross-examination and unfair rulings on evidence.

Prosecutors contend her 33-year non-parole period is 'manifestly inadequate' and want her barred from ever being released.

Melanie Lynskey is set to play Patterson in a six-episode Paramount+ series covering the 97 days between the poisoned beef wellington lunch and her arrest.