Mrs Drusse continues her investigation, Krogshøj steals the severed head from Mogge and uses it to blackmail him, while Bondo is at his wits' end when a patient's relative refuses to hand over his liver infected with a rare cancer.

Dr Helmer decides to steal the incriminating report but unbeknownst to him, Krogshøj has the same plan, Bondo wants to transplant the cancerous liver into himself, and Mrs Drusse finds out Mary didn't die of TB as reported.